Title: Composer autoloader optimization
Last modified: October 5, 2026

---

# Composer autoloader optimization

 *  [Antony Booker](https://wordpress.org/support/users/antonynz/)
 * (@antonynz)
 * [5 days, 19 hours ago](https://wordpress.org/support/topic/composer-autoloader-optimization/)
 * Thanks for this plugin.
 * I noticed the composer autoloader is making a lot of file_exist checks (1788)
   before loading the files, which has an impact on performance.
 * Would it be possible for it to be built with `[--classmap-authoritative](https://getcomposer.org/doc/articles/autoloader-optimization.md#optimization-level-2-a-authoritative-class-maps)`
   instead? This will stop the file_exist checks and speed up the backend processing
   time.
 * If interested more details can be found below with benchmarks of the possible
   improvements:
   [https://github.com/WordPress/developer-blog-content/issues/468](https://github.com/WordPress/developer-blog-content/issues/468)

Viewing 1 replies (of 1 total)

 *  [Nafiz](https://wordpress.org/support/users/urnafiz/)
 * (@urnafiz)
 * [5 days, 11 hours ago](https://wordpress.org/support/topic/composer-autoloader-optimization/#post-19037364)
 * Hello [@antonynz](https://wordpress.org/support/users/antonynz/),
 * Thanks for sharing this detailed feedback. I will share your suggestion with 
   our team for review and consideration.
 * Best regards,
   Nafiz | Kirki Support Team

Viewing 1 replies (of 1 total)

You must be [logged in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcomposer-autoloader-optimization%2F%3Foutput_format%3Dmd&locale=en_US)
to reply to this topic.

 * ![](https://ps.w.org/kirki/assets/icon-256x256.jpg?rev=3518366)
 * [Kirki – Freeform Page Builder, Website Builder & Customizer](https://wordpress.org/plugins/kirki/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/kirki/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/kirki/)
 * [Active Topics](https://wordpress.org/support/plugin/kirki/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/kirki/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/kirki/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Nafiz](https://wordpress.org/support/users/urnafiz/)
 * Last activity: [5 days, 11 hours ago](https://wordpress.org/support/topic/composer-autoloader-optimization/#post-19037364)
 * Status: not resolved