Different Behaviours on different cpanels

Note: 

This is related to this post: https://www.drupal.org/forum/support/post-installation/2018-07-11/site-i…

I have a site on savvy.com.au and when i cloned it to bsavvy.com.au there’s a huge difference.

On savvy.com.au the ttfb is 8-9secs while on bsavvy.com.au is < 1sec.

They both reside on the same vps but separate CPanels.

is this a server config issue? or something else?

Thank you, your replies are greatly appreciated.

Drupal version: 


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