got a wired problem can someone explain it please.....lagging one

guys my specs : Intel i9-10900K
AMD RX 6600…16gb of ram…unreal engine installed on 1TB of crucial p3 plus…
the problem is…the ui getting slowed or lagged…like when i try to open setting or edit panel or soemthing like that… it have fps drops that time IDK how… i searched and tried everthing like switching to DX11 …lowering the graphics settings…config files… can someone help…but i have laptop which have RTX 2050 and AMD 5600H,8gb of ram which runs unreal engine 5 and everthing perfectly…but my pc doesn’t …i tried evrey versions of unreal in my pc but it doesn’t work smoothly …PLEASE help…Im trying to learn UE% but this problem happening

It often due to a third party app like overlay monitoring/overclocking gpu.

Try out these solution too from Any version crash!!! - #5 by SupportiveEntity

i tried it also…plz any other fix?

Try to run unreal on your intel integrated gpu and set the project as scalable to narrow down the possible issues.
Otherwise i dont’ what else can be tested.

Try to disable Use Less Cpu In Backgroun as well, this can cause lag especially with dual monitor or using with obs recording.

I’ll try sir