high CPU usage & stuttering

Dear u/Daddy_Spez ,

Tagged as software 'cause I imagine the problem isn't hardwired but I may be wrong, I'm not particularly knowledgeable about it.

My CPU usage is frequently at a high percent when playing games, even at the lowest graphics, which may just be the case of a low-end CPU for the games I'm playing. Because of this, my system will often start to stutter for a moment and then fix itself shortly after. I caught this happening with Task Manager open and it shows the usually-CPU hungry game executable suddenly using very little resources while the game stutters, and then the high usage resumes as normal play does. Is this some sort of mechanism to prevent the CPU from being at too high of a usage too long or something? If not, how can I fix it?

I use an AMD Ryzen 7 3750H 2.3HGz, which should be fine for the games I play I think (Rainbow 6, Apex Legends, Wo Long, Witcher 3, NFS Heat, etc), though again I'm not too sure.

Any help is appreciated.