wordpress中的admin-ajax / css插件问题

Wordpress website with formidable pro plugin admin-ajax-css taking to much time to load and overall slowing down the website. Also, I am using Avada theme

  • I cant minify the CSS as it breaks everything.
  • Using w3 total cache plugin and tried caching

admin-ajax.php?action=frmpro_css&ver=9132125

Any steps i can follow to fix this? other than disabling the plugin or reinstalling.

website i am working on - https://nationalcarparts.co.nz/

network output from inspect