Title: website CLS issues
Last modified: September 6, 2023

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# website CLS issues

 *  Resolved [jonmossman](https://wordpress.org/support/users/jonmossman/)
 * (@jonmossman)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/website-cls-issues/)
 * Hello, I’m really struggling to get the CLS score from Google Pagespeed to improve
   on my product pages.
 * I think the plugin, whilst improving the other metrics I think is hurting my 
   CLS score.
 * Is this a known issue? or an issue with how I’ve got it configured?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fwebsite-cls-issues%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/website-cls-issues/#post-17030490)
 * 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
 *  Thread Starter [jonmossman](https://wordpress.org/support/users/jonmossman/)
 * (@jonmossman)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/website-cls-issues/#post-17030504)
 * disabled JS optimization.
 * This now has a CLS of 0! but the other scores are pretty bad…
 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/website-cls-issues/#post-17030852)
 * > 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?

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘website CLS issues’ is closed to new replies.

 * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608)
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 * 3 replies
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/website-cls-issues/#post-17030852)
 * Status: resolved