tune up utilities is a nice program witch can push just that last inch extra out of your pc!
https://www.tuneup-software.nl/
basically what it does is shutting down programs witch are running on the background and you do not actualy need.
it does take some time to set up but it is worth it!
few examples:
I brought back my boot up time from 10 min to 3 or so!
games witch I first could barley*some frame drops* run, go now smooth.
c4d render times reduced a bit.
so yhea for just a simple program and no risk of damaging your rig cause of overclocking I think it works awesome.