Page speed insights suggestion – remove duplicate modules

Hello @sarina1

Please make sure you are using the latest AMP plugin the v 2.1 brings more optimization that reduces the duplicate module in the javascript bundle you can learn more about it in this issues

Please share your site URL so we can check its performance on PSI

The server response time is dependant on three factors mainly.

1. Server’s application – Contact your hosting provider to improve it
2. Databases queries – Check slow-performing DB queries with Query Monitor or Newrelic and Optimize them.
3. Server hardware – Adding more CPU and RAM can improve it.

you can read more about it this article.

Hello @sarina1

I would suggest checking your caching mechanism make sure it caches mobile pages also if you are using query parameter based structure (?amp or ?amp=1) make sure you cache plugins caches that too eg: WP Super cache has settings that do not cache pages with a query parameter.

I do see an option in Page Caching “Cache URIs with query string variables”.

but I will recommend checking with w3tc support as they can advise you better on this one.

The issue seems specific to be for the AMP core issue regarding unused JavaScript being reported by Lighthouse. Reporting that issue to the AMP plugin won’t help because it’s an AMP core concern. So you can watch for updates on the core issue you already found: https://github.com/ampproject/amphtml/issues/28638

try reducing server response time it will also improve your overall PSI score.