High Load on the server how to decrease it using LiteSpeed

#1
Hello , i was having a Dedicated server from a company (Company A) they're also reselling from another company(Company B). I have taken an server with the same specification from that another company (Company B).
The Server Configuration are :
Intel Xeon E5 CPU
64GB DDR4 RAM
2*2 Enterprise HDD

cPanel , CloudLinux and LiteSpeed are installed on the server.
But, the server which i have purchased from Company A , having the average load of 2-3-4-5-6
But the server which i have purchased from Company B having the average load of 10-15
Specifications are same, Softwares and Plugins are same, accounts are same.
I am hosting 900+ cPanel accounts on the server.

Any way to decrease the load via LiteSpeed?
I have tried to configure LiteSpeed, i goes to LiteSpeed Admin Console -> Configuration -> External App i have seen there's no App there so i added CloudLinux PHP Selector via Following the guides/tutorials.

Can someone help me to decrease my server load?
 
Top