Drivers load the computer, what's wrong with them?

Question

Computers

Literally a couple of months ago, everything was fine with the computer, I played cs at high with excellent fps (yes, sometimes I like to play), now at medium fps settings it’s even worse .. sometimes the sound jams (freezes)
When I’m in the game itself and immediately turn it on dispatcher, then system interrupts eat 100% of the CPU, as soon as I get out, the load on the CPU immediately drops to 30% somewhere