activity-log.com

Plugin allow you to run most important test for performance: request time, number of database queries, memory usage
You will be able to detect plugin which cause troubles and result with longer waiting time for request results
Testings are executed based on your homepage
<iframe loading="lazy" title="WordPress Profiler – What Slowing Down Your WP" width="750" height="422" src="https://www.youtube.com/embed/3hJbClFbw5s?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
How to use it?
In Dashboard go to Tools->Profiler What Slowing Down
Click on run test on all plugins (first link) and then near wanted plugin, run few tests and compare results
If you get significantly lower results, means that this plugin causing slowness
Hint: Lower numbers are better, means that page load faster without this specific plugin

Profiler – What Slowing Down Your WP

Plugin allow you to run most important test for performance, request time and number of database queries With this Plugin Performance Profiler you wil …

muehlwitz

This Plugin adds a Form to an existing Page. All you have to do is to add the Shortcode [wpideaforge] to that Page. After that your Visitors can suggest Ideas for Articles you could write in the near Future. Other Visitors can vote for Ideas so you can see what is popular, and what is not.

wpIdeaForge

Let's user suggest Ideas for upcoming Articles.

Profiler – What Slowing Down Your WP vs wpIdeaForge