Lithiumantis

I recently replaced my old MSI B450M Bazooka motherboard with a ASRock B550M Pro4 in order to update to Windows 11, what with the end of support for Windows 10. It seemed to be working fine at first, but I noticed that I am now getting severe stuttering in many games that used to run fine, such as Lost Ark, Veilguard, and Honkai: Star Rail. Pretty much anything 3D. This is accompanied by GPU usage spiking to near 100%, while CPU and RAM stay between 25-50%. I have updated my drivers and BIOS, but the issue persists.

Since the motherboard is the only new part, my assumption was that the problem lies with it - is this the sort of issue that a motherboard can cause? None of the reviews I saw m