> quite a lot of research on latency in academia I recall reading about a study years ago that showed while response times are limited to around 150ms between

> quite a lot of research on latency in academia I recall reading about a study years ago that showed while response times are limited to around 150ms between stimulus and say moving a finger, the participants could consistently time movements with an accuracy of less than 10 ms or so (I forgot the exact number). Which I assume explains why consistent input lag is much better than variable input lag.