Are you noticing any issues? If not, then you're being paranoid.
Sometimes it's better to not monitor stuff like that unless there are issues because then you want to "fix" it and then it just ends up broken, when there was nothing wrong in the first place.
I once had someone try to tell me they needed a new computer because their process manager was at 99% all the time, even though their computer wasn't running slowly at all. Turns out it was the 'system idle process' that she was looking at and of course it uses all of the cpu that it can when nothing else is in use. The point is, unless you understand 100% it's best to leave well enough alone (IMHO).