Comment by tuatoru

From Wikipedia: -

> The interface has two main signal lines, Data and Clock. ... To transmit a byte, the device simply outputs a serial frame of data (including 8 bits of data and a parity bit) on the Data line serially as it toggles the Clock line once for each bit.

Increasing the clock rate absolutely does reduce latency on a PS/2 port.

1. https://en.wikipedia.org/wiki/PS/2_port