Usually it's memory that contriubtes to the increase on CPU Loads. I guess, for me anyway, I'd need to know what "CPU/Load usage goes very high" is, and what is causing the CPU load.

I mean you can tell me that there's a leak in your house and you have a bucket underneath it but you keep having to dump water out. If I put a bathtub under it, will that work. The answer is still not determined as is it a small hole or a is there a 5' hole, and what caused it and could it happen again.

Same on a VPS or server. What causes the high loads, what are you doing to address that, or are you just putting a larger "bucket" under it and hoping there's enough room.