Freesoul Deactivate Plugins PRO (FDP) allows you to deactivate plugins on specific pages for speed optimization, debugging and problem-solving.

Plugin Manager Pro is a WordPress plugin that allows you to disable plugins for certain pages, posts or URI conditions.

Deactivate Plugins Per Page is useful for speeding up your site mainly because many external plugins will load their jаvascript and CSS resources on every page even if you are using them on the same page.