https://www.researchgate.net/publication/266655520_In_the_blink_of_an_eye_Investigating_latency_perception_during_stylus_interaction https://www.researchgate.ne

https://www.researchgate.net/publication/266655520_In_the_blink_of_an_eye_Investigating_latency_perception_during_stylus_interaction https://www.researchgate.net/publication/266655520_In_the_bl... this is for a stylus, but people can detect input latency as low as 1ms (possibly lower) with VR, they use the term "motion to photon latency", and if it's over ~20ms, people start getting dizzy. at 200ms, nobody is going to be keeping their lunch down google noticed people making fewer searches if they delayed the result by 100ms edit: if you want an easy demo, open up vim/nano over ssh, and type something. then try it locally