I've got an odd situation happening with my computer. Started with a game called Risk of Rain 2, started noticing the game locks up for about 2 seconds every 30 seconds or so. It's almost unplayable now, and I've tried lots of different troubleshooting steps. Uninstalled/reinstalled the game (I've tried the same Hard Drive and the SSD on my system), I've checked for recent updates for drivers in both Geforce Experience and any windows update, as well as the device manager to see if an update was needed there as well. It's not a network issue as the game is playable offline, and the issue persisted even after turning off the internet on my computer (unplugged the ethernet cable, it has no wi-fi capabilities.
I started seeing this issue in specific other games like Tabletop Simulator and in Stick Fight the Game, and is even happening on the Steam Client as well. Again, making sure that each of these programs are up to date and that there were no security programs or other disruptive programs that might be preventing them from running properly.
Stranger yet, any games that are graphically demanding, ie; Monster Hunter World, The Witcher 3, Bioshock infinite, are all capable of running super smoothly (and that's with OBS Studio running in the background to record/stream gameplay) with absolutely no issues whatsoever. I've also tried testing games using other clients like the Epic Game Store (groan), and I did a similar test, playing Batman Arkham Asylum as the high demanding game, and Enter The Gungeon as the low demanding game, but neither of the games experienced issues.
I've posted a video on youtube that shows exactly what the stutter/freezes look like. The only thing that I've noticed between the games and programs experiencing the issue is that the GPU drops down to zero every 20 seconds or so before "reviving" itself in the middle of the process. I have task manager opened during the video to show this.
https://www.youtube.com/watch?v=mcYaHnNzQ54
Any help to solve this problem is greatly appreciated!