> I have noticed my M1 Mac Mini behaves a bit strangely when I have my external USB3 HDD plugged in. The mouse motion is stuttery, but unplug the drive and it i

> I have noticed my M1 Mac Mini behaves a bit strangely when I have my external USB3 HDD plugged in. The mouse motion is stuttery, but unplug the drive and it is smooth as silk. There's evidently something low-level going on, probably USB error recovery. I've had similar sounding issues with a keyboard, mouse, a couple of USB audio devices plugged in via a hub to USB 3 (nothing high bitrate like a USB drive). I need to unplug one of the USB sound devices to stop this if it happens. I think all these devices are USB 2.0 at best.