How to fix the I/O delay on MSI A520M-A PRO for TLOU Part II?
I'd hit the interact key, and the character would react a fraction of a second later—it was subtle but enough to ruin the experience. The USB bus on the MSI A520M-A PRO was showing 12 - 20ms of scheduling latency with my high-polling rate gear. I tried swapping between USB 2.0 and 3.0 ports, but the lag stayed exactly the same, which told me it was a driver-level mess. I flashed the latest AMD chipset drivers and forced the USB mode from 'Auto' to 'High Speed' in the BIOS. Using a latency tester, the response time dropped from 18ms to a crisp 5 - 7ms. It feels incredibly snappy now. I did have a weird issue where my wireless mouse kept disconnecting right after the update, but disabling 'USB selective suspend' in Windows killed that bug. Board temps are fine, idling at 38 - 45℃ and peaking at 52 - 58℃. Confirmed the polling rate is locked at 1000Hz, and RAM is steady at 52 - 58℃.