Originally published on https://wpmultitool.com/2026/04/08/plugin-performance-score/

New in WP Multitool 1.1.19 – Plugin Performance Score is the newest module in WP Multitool. It adds real benchmark data to your WordPress Plugins page so you can see exactly which plugins are the heaviest. Here’s what it does and why it matters.

Every WordPress developer has had this moment

The site is slow, you open Query Monitor, and you see 180 database queries. But which plugin is responsible for most of them?

Query Monitor tells you what happened during a single page load. It’s a debugger – and QM4 just made that debugger a lot better with a new timeline view and client-side rendering. But it still doesn’t answer the fundamental question: is this plugin heavy in general, or just heavy on this particular page?