Optimizing your database in cPanel using phpMyAdmin boosts performance by freeing up unused space.
1. Log in to your cPanel account.
2. In the Databases section, click on phpMyAdmin.
3. Click on the Expand icon from the navigation tree in the left sidebar. 
4. Scroll down and mark Check All. Click on the drop-down option and select Optimize tables.
The table has been successfully optimized.