I have seen this "CPU Units" thing in Proxmox - however I am not sure what they do - what are they used for. 

All of our VPS' are set to 1000 

We have some windows systems that could use an injection of cpu - so not sure if raising this to say 100000 would work or not... 

Also - we use a ton of the container based vps on the system as well - is there a difference between the two