Performance Intelligence is an editor and admin panel. It lists widgets on the current document, flags unused lanes, and points you at Asset Compiler when a page is carrying too much CSS and JS.
Live demo
This lane is an editor tool. Watch the tour, then use the stills — there is no frontend widget of its own.
How to implement
Turn on Platform: Performance Intelligence under Elementor Extras → Add-on features.
Edit a page with Elementor and open the Performance panel in the editor footer.
Disable unused lanes or compile assets from Elementor Extras → Asset Compiler.