webp images loose quality after uploading even with quality set to 100

Webp images seem to get compressed and have worse quality that the original on the computer. Even when setting the webp quality to 100 with this code snippet:

function filter_webp_quality( $quality, $mime_type ) {
  if ( 'image/webp' === $mime_type ) {
     return 100;
  }
  return $quality;
}
add_filter( 'wp_editor_set_quality', 'filter_webp_quality', 10, 2 );

Anyone experienced this or know where this issue comes from?

• This topic was modified 3 years, 3 months ago by weddje.