Question PC gets to a crawl after alt-tabbing

[fiveohnine]

This issue started about a week ago. Started playing It Takes Two, which I have played in the past with no issues. I noticed how bad the game was running like 1 action per 10 seconds and freezes in between. Restarted the game, again poor performance. Restarted again, works fine and the game run great. At this point I thought it was just the game. Then I started playing Call of Duty MW3. Now whenever I finish a match loading back into the main lobby, my PC once again comes to a very frozen like slow. Not EVERY TIME but often enough its raising suspicion. Even when the game is closed through task manager, my computer is at a crawl. Also, I play a lot of SCUM and if I recall it happened once on there too, but I can't remember too well because I was playing a lot before the new call of duty. This has never been an issue before one week ago. I was thinking maybe a dust off would do but what could dust do to cause this? Any help appreciated!

Spec:
i9-10900k
2080ti
32gig RAM
Windows 11 Home OS*

M.2 for windows and games
SSD for extra storage.

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Open up Task Manager and see what your system resource usages are like.