Hook slowing down WP load time

[larodiel]

Hi guys the hook add_filter( 'upload_dir', [ $this, 'filter_upload_dir' ] ) located on https://github.com/humanmade/S3-Uploads/blob/master/inc/class-plugin.php#L106 is slowing down the whole website changing the URL's on load time. Is there a faster way to rewrite those URL?, maybe using .htaccess