Most often CCC of .js files in performance page does not work. See below "How to know if your shop is serving more than one CCC .css file across page types?".
This module fixes this issue and serves one PrestaShop Combine, Compress, and Cache CCC .css file across all pages of your shop. This significantly reduces above the fold page render.
Benefit
Improved visitor experience with faster above the fold render.
How to know if your shop is serving more than one CCC .css file across page types?
using chrome, this may very with other browsers
go to your shops index page
right-click select the “View page source”
note name of pages CCC .css file
go to category page
right-click select the “View page source”
note name of pages CCC.css file
If the file names of the CCC .css are different then each page type will reload .css, much of which was already loaded at first landing.
