Perfmatters is a super-lightweight performance plugin for WordPress that allows you to disable the features that are not being used by your WordPress website.
Nitropack is a caching and performance optimization plugin for WordPress. It speeds up your website by caching static files and optimizing your images.
WP-Optimize is a revolutionary, all-in-one WordPress performance plugin that caches your site, cleans your database, and more. WP-Optimize Premium takes it further.