Profile performance on image-heavy posts.

[diegoreymendez]

Make sure the editing experience is as smooth as possible on image-heavy posts.

Example content:

<img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://upload.wikimedia.org/wikipedia/commons/6/64/Durdle_Door_Overview.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://static.businessinsider.com/image/57717085dd089531228b4a1f.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://cdn.spacetelescope.org/archives/images/large/heic0807c.jpg"><img src="https://www.nasa.gov/sites/default/files/thumbnails/image/pia21394.jpg"><img src="https://examplebloge.files.wordpress.com/2017/02/3def4804-d9b5-11e6-88e6-d7d8864392e0.png"><img src="https://lambda.gsfc.nasa.gov/product/map/dr5/map_images/9yr_4096/k_9yr_temp_4096.png">