W3 Super Cache Settings
The WP Super Cache WordPress plugin is one such plugin that helps you optimize your database by generating static HTML files, which are used to serve the request. This way, when any page is requested from your site, static pages will be served instead of processing all of the PHP scripts.
Once installed, you need to switch on the cache by going to Dashboard > Settings > WP Super Cache.
You can copy below settings and use them for your own website.