I'm getting noticeable keyboard and mouse delay during firefights in Delta Force on my Maxsun B850M-K, should I change the port mode?

I'd click the fire button, and my character would react 0.1 seconds later—it was a nightmare for my K/D. The USB bus on the Maxsun MS-Challenger B850M-K was hitting 12 - 20ms of scheduling latency with my high-polling rate gear. I tried swapping USB ports, but whether it was 2.0 or 3.0, the lag persisted, which told me it was a driver-level issue. I flashed the latest AMD chipset drivers and forced the USB mode to 'High Speed' in the BIOS. Using a professional latency tester, the response time dropped from 18ms to a snappy 4 - 6ms. I did have a brief issue where my wireless mouse kept disconnecting after the driver update, but disabling 'USB selective suspend' in Windows fixed it instantly. Board temps are 35 - 42℃ at idle and 50 - 58℃ under load. Polling is now locked at 1000Hz with frame times at 5.1 - 6.4ms.