Why does Space Marine 2 hitch during rapid melee attacks?

While executing fast charges and melee strikes, the screen would hitch momentarily, which is basically lethal in such a fast-paced war game. I tried changing my mouse driver version, but the stuttering frequency actually increased, leaving me feeling completely lost. I ran the GamePP Peripheral Driver Conflict Detector and disabled a third-party RGB software that was spamming my USB bus. My frame time finally stabilized at 16-20ms per RTSS, and GPU temps stayed at 62-68℃ per AIDA64.