Windows 10: Sudden FPS drops in games

I have installed Windows 10 via bootcamp on my iMac 5K 2017. For years I played games on it on windows without any problem, and it gets 60fps in max graphics at 1440p resolution in many games, even in recent ones.

Suddenly, without me doing anything wrong or different, I have this problem: all games, are playing fine for 5-15 minutes, but then the fps are dropping from 60 to 45-50 and then slowly to 35-40.
This happens in all games.

I tried everything, from reinstalling the GPU driver to formatting and completely reinstalling windows and games, but nothing. The problem still occurs and it’s very annoying!!

Maybe it has to do with some windows update? Because windows installed 2-3 cumulative updates recently.

Of course I have set the energy plan to maximum performance and the temperatures are ok as always. Also all software is up to date.

Any ideas what I can do to fix that very frustrating issue? I don’t even know what’s causing it...

:)

 

Sudden FPS drop/Stutter

Since 2 days ago, I just turned on my Computer, and it starting having issues while I was playing Witcher 3 (starts with decent fpsm and then very low fps, dropping to 35, then 20, and stopping at 12 or so, in a matter of seconds, in a matter of 1min of starting the game), also stuttering without any high demanding programs, randomly. I was playing at 45-60 fps, without any stutters or sudden fps drop. Have tried other games the issue persists. Even setup everything to low settings.
I have ran several tests with several tools, all seems normal, no sudden memory spikes, or temperature raising out of the ordinary, nothing that would indicate such an fps drop or stuttering.

MSI Afterburner

I also did the reset option on Windows10, completly cleaned out all my personal info from the windows partition.
So at this point, I am not sure if it is a software issue or a hardware issue.
Any suggestions are greatly appreciated.

Edit: I kept doing some tests to find out the issue. And this happened before and I was able to replicate it. Same thing happened as before, till I set it up to fullscreen, Alt+Tab from the game and then back to the game, FPS went up to 50 again, stable and good, dropped after a couple of seconds. After a bit it went to 2-5 fps, and I had to shutdown the game, because even the sound was getting messed up.

MSI Afterburner 2

In this image those ups and downs in the GPU usage are when the fps dropped really hard and the sound got messed up.

 

drop fps every game

Hi,

You can check Preeti Patel's answer on this
link. Some users found her answer helpful. We suggest that you also try to follow the steps she provided and let us know how it goes.

Regards.

 

Permanent FPS drop in all games.

Hi,

Outdated drivers, CPU-intensive processes running in the background, virus and malware infection, and CPU throttling are reasons for a sudden FPS drop when playing games.

For us to properly isolate the issue and provide a suitable resolution, we would like to know the following:

• When was the last time you have installed the latest drivers on your computer as well as the latest game updates?
• Have you checked the CPU temperature while playing games?
• When was the last time you have cleaned your laptop?
• When was the last time you run a full scan on your laptop to check for virus and malware?

Looking forward to your response.