When testing with Autoptimize disabled (by adding ?ao_noptimize=1 added to the URL) I still see a significant amount of CLS, albeit a bit less then with AO (.43 vs .69 in my one off tests).
The issue very likely stems from JavaScript being used to (re-)render parts of the page. Adding AO to the mix delays that JS (to make it no block rendering) and thus the layout shifts can be a bit more pronounced. You can confirm if this is the case by disabling JS optimization (your “root” cause issue that JS is re-rendering parts of the page will remain off course).
hope this helps,
frank
disabled JS optimization.
This now has a CLS of 0! but the other scores are pretty bad…
this now has a CLS of 0!
that’s … surprising, given the 0.43 when AO was disabled, but all the better .. 😉
but the other scores are pretty bad…
yeah, afraid that JS is (one of) the best way to slow your page down … see if you can (get tips from the theme/ pagebuilder support to) make the page less dependent on JS?
