Once you’ve created your account and added your website, you can customize your performance settings in your Cloudflare Dashboard under the Speed and Caching apps along the top navigation menu. There, you can manage your settings, according to your performance needs.
To learn more, check out the Speed and Caching sections within the Cloudflare Help Center for more information.
If after enabling Cloudflare you see parts of your website displaced or disappearing, try disabling RocketLoader and Auto-Minify.