I’m trying to improve my website performance and Google PageSpeed Insights shows that many JavaScript and CSS files are unused or partially unused.

I want to remove or disable these unnecessary files, but I’m not sure what the correct or safest method is.

My setup:

• Platform: PHP

• Issue: Unused JS/CSS increasing load time and negatively affecting performance scores

What I want to achieve:

• Remove or stop loading unused JS/CSS

• Load only required assets on specific pages

• Avoid breaking theme functionality

What I have tried:

• Checking PageSpeed “Remove unused CSS/JS” section

• Tried disabling some files, but some parts of the site break

• Searched documentation but did not find a clear solution