Title: compression?
Last modified: December 9, 2025

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# compression?

 *  [pdjp](https://wordpress.org/support/users/pdjp/)
 * (@pdjp)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/)
 * Good plugin, but no option to set the WebP compression value. What compression
   is used here?

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Weston Ruter](https://wordpress.org/support/users/westonruter/)
 * (@westonruter)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18749387)
 * The quality is set to 82: [https://github.com/WordPress/performance/blob/4f8592984f3b9c0a319cacd5d1a8726ccf911164/plugins/webp-uploads/hooks.php#L720-L738](https://github.com/WordPress/performance/blob/4f8592984f3b9c0a319cacd5d1a8726ccf911164/plugins/webp-uploads/hooks.php#L720-L738)
 *  [masvil](https://wordpress.org/support/users/masvil/)
 * (@masvil)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18749413)
 * And this is the code to change it:
 * // AVIF compression quality, for Modern Image Formats plugin
   function filter_img_quality(
   $quality, $mime_type ) {if ( ‘image/avif’ === $mime_type ) {return 60; // quality
   set to 60}return $quality;}add_filter( ‘wp_editor_set_quality’, ‘filter_img_quality’,
   10, 2 );
 * [@westonruter](https://wordpress.org/support/users/westonruter/) any reason why
   it can’t be done via UI?
 *  Plugin Author [Weston Ruter](https://wordpress.org/support/users/westonruter/)
 * (@westonruter)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18749465)
 * WordPress core doesn’t provide a UI to change the compression. The Performance
   Lab plugins are intended as feature plugins to be later merged into core, so 
   the UI tries to be minimal. We try to maintain the “[decisions, not options](https://wordpress.org/about/philosophy/#:~:text=Decisions%2C%20not%20options)”
   philosophy.
 *  [masvil](https://wordpress.org/support/users/masvil/)
 * (@masvil)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18749913)
 * Thanks for the explanation, [@westonruter](https://wordpress.org/support/users/westonruter/)
 *  Thread Starter [pdjp](https://wordpress.org/support/users/pdjp/)
 * (@pdjp)
 * [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18750054)
 * Thx. 🙂

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘compression?’ is closed to new replies.

 * ![](https://ps.w.org/webp-uploads/assets/icon.svg?rev=3098226)
 * [Modern Image Formats](https://wordpress.org/plugins/webp-uploads/)
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 * 5 replies
 * 3 participants
 * Last reply from: [pdjp](https://wordpress.org/support/users/pdjp/)
 * Last activity: [6 months ago](https://wordpress.org/support/topic/compression-6/#post-18750054)