How to reduce mouse latency in STALKER 2 on Galax B360M-M.2?

During precise sniping, I felt a strange stickiness in the mouse pointer, which is absolutely deadly in the Zone. I first tried disabling mouse acceleration in Windows, but it had zero effect on the actual latency. I used the GamePP Peripheral Driver Conflict Detector to set redundant background services to manual and reinstalled clean drivers. Response time stabilized at 8-12ms per InputLag Test, CPU usage hit 45-52% per Task Manager, and temps were 48-55℃ per HWInfo.