Windows 10: During use - Pc uses GPU-0 and puts 3D to 100%. Cannot find the cause for the performance...

Recently built a new PC specs listed below and whenever I launch a game, the 3D scale on Task Manager shows its maxing at 100%, Everything else is at normal values/levels. I cannot find the cause for this. Integrated Graphics isn't showing on Device Manager isn't showing so I cant tell if its that.Build :12900k64gb ddr4 3200RTX 4070 - Driver VER 537.13Asus TUF B660-Plus Wifi Motherboard200mm PCI Extender Vertical mountingWindows 10 HomeAttached Picture is during Battle Bit - 18 Fps in game at native resolution 3440x1440

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dwm.exe 100% GPU usage GPU 0 - 3D

Maybe the dwm.exe shows 100% gpu usage because nothing else is using the gpu at the time beside dwm.exe itself, hence the usage, when anything else uses the gpu it shows the real usage(I think)

 

Help with graphic card changing between GPU-0 3D and GPU-1 Copy

on GPU 0 60% on the 3D graph , on the GPU 1 30-35% on the copy graph and on 3D is 0%, and when I look on processes on GPU engine it says GPU 0 3D and when i am in loading screen it says GPU 1 copy.

 

CSRSS Using 100% GPU Freezing PC

Over the past couple of weeks I have been experiencing either severe lagging or complete freezing of my pc. In task manager the culprit seems to be Client Server Runtime Process (gpu 0 - 3d), which is located in the Windows 32 folder as CSRSS, using upto 100% of the gpu. This seems to happen randomly, even when the pc is idle.

When I use the mouse wheel for scrolling on a website, then the Client Server Runtime process immediately uses the gpu at between 30% and 40%. I turned of hardware acceleration in Firefox, but this doesn't seem to have made a difference. Anyway, the pc will sometimes freeze without a browser open.

I am also sometimes get 100% CPU from System Interrupts.

During this time there have been updates from Windows and Nvidia (GeForce GTX950).

Windows 10, version 21H1 (OS build 19043.1237)