Slow Software240 A similar source of latency is USB scanning. The USB protocol pulls input from the keyboard, so the keyboard needs to wait for the USB scan to send its key presses. Low speed USB scans at 125hz, introducing an unavoidable ~8ms max and ~4ms average delay. More recent USB versions scan at 1000hz or more, minimizing the latency impact. There are many other potential sources of latency in input de
