Basically, CloudLinux sets limits on hosting accounts, here is what you need
1- Remove limits for a certain user
lvectl set-user techg –unlimited
2- Restore all limits to defaults
lvectl apply all
Or
lvectl delete-user techg
3- Increase speed of website to use 3 cores
lvectl set-user techg –speed=300%
Change the defaults
lvectl set default –speed=100% –pmem=2048m