Here is the method to Speed up your WordPress site. After do this, your sites will be load faster than ever.
First, visit cPanel > File Manager and find the wp-config.php file. Edit it and add this below line to the wp-config.php
define('WP_MEMORY_LIMIT', '1024M');
After that you have to increase memory limits on the cPanel.
After that, Login to your WordPress Admin Panel (example.com/wp-admin) and remove all caching plugins you are using such as LiteSpeed Cache, WProcket etc.
After that, Login to cPanel > AccelerateWP.
After that, you will have such a page as below.
Press the wheel icon on AccelerateWP (Not in premium) and Turn it on and wait until the complete.
After completing it, login back to your WordPress site's admin panel and see
Settings > AccelerateWP
and visit there.
After that follow these steps.
After all done, visit Dashboard Tab and Clear all cache as follows.
Done. Now check your website's performance!
Enjoy