It's a 2017 article, but according to this, the two personal computers with the lowest input latency of all time are the Apple //e (1983) and the TI-99/4a (1979)
https://danluu.com/input-lag/
And the highest latency was a Symbolics Lisp machine from 1986. It's not the transistor count, it's the depth of the abstraction stack.
And the highest latency was a Symbolics Lisp machine from 1986. It's not the transistor count, it's the depth of the abstraction stack.