WHM gives you incredible access to tweak and configure settings how you see fit. In the Tweak Settings section of WHM, the spectrum ranges from cPanel Addons to System settings. Adjusting your system performance to maximize your speed is vital, and these recommendations will help you get the most out of your applications.
Below is a list of the most recommended Tweak Settings in WHM. To get to Tweak Settings login into your WHM account and go to Home > Server Configuration > Tweak Settings.
Turn off Mailman
Set email delivery times to retry every 120 seconds (default is 60 seconds)
Set initial default/catch-all for accounts behavior to fail
Turn off Boxtrapper Spam Trap and SpamAssassin
Turn off Analog Stats and Webalizer Stats
Turn on Conserve Memory
Disable Allowing Anonymous Logins and Anonymous Uploads by checking no
Home > Service Configuration > FTP Server Configuration
Install spam cons
Home > cPanel > Manage Plugins
Use off-peak hours to run Cron jobs
Install accelerator PHP accelerator
Compile Apache with mod_deflate Gzip Module
Instead of the default MPM, use Apache with the thread-based Worker MPM