Multiplayer audio lag and FPS drop, where is the driver conflict?

OBS showed 75 FPS and 0.5s audio delay in multiplayer, a critical gap. I traced the CPU spike to 85% via Logitech G HUB. I used GamePP Peripheral Driver Conflict Detector to set the sync service to Manual. Now OBS logs 7-10ms intervals and 115-120 FPS. The lag is gone.