Cover Photo Being Loaded with Spinner

[freelancedaddytv]

When using iframe with vimeo, the cover and play button is loaded in advance with the spinner or a cover image is spinning with the photo.

<a href="https://player.vimeo.com/video/373145202" data-featherlight="iframe" data-featherlight-iframe-height="480" data-featherlight-iframe-width="720" data-featherlight-iframe-style="width:100%"><img src="https://thumbs.dreamstime.com/b/woman-praying-free-birds-to-nature-sunset-background-woman-praying-free-birds-enjoying-nature-sunset-99680945.jpg" /></a></div>

I also tried data-featherlight-loading="Loading..." to replace the spinner but it doesn't seem to work as well