@moinansari
It looks like Christopher is using WP Super Cache.
Also, straight from his own website are details regarding his BlueHost configuration:
https://thisismyurl.com/90/hosting-wordpress-with-bluehost/
(That actually came up from a google search for ‘bluehost supercache’ — nice ranking on this topic Christopher!)
Regarding throttling, BlueHost has a tool in their cPanel which which will tell you in realtime exactly how much you’re being throttled and display a throttling history as well as direct you to the culprit process(es).
This is the ‘CPU THROTTLING’ tool in the ‘Logs’ area of your BlueHost cPanel.
BlueHost has more information detailed about this in their knowledge base:
https://helpdesk.bluehost.com/index.php/kb/article/564
Hope this helps. ??