yeah no. Ask musicians using computers - 50 milliseconds of latency between sound and movement is generally considered unplayable, 20 milliseconds is tough, below 10ms usually is where people start being unable to tell.
You’ve fallen into the common trap of conflating reaction time with observable alignment time.
Reactions are about responding to one off events.
Whereas what you’re describing is about perception of events aligned to a regular interval.
For example, I wouldn’t react to a game of whack-a-mole at 50ms, nor that quickly to a hazard while driving either. But I absolutely can tell you if synth isn’t quantised correctly by as little as 50ms.
Thats because the later isn’t a reaction. It’s a similar but different perception.
Pressing a key to trigger an action that you will then send additional input to is an entirely different sequence of events than whack-a-mole, where you are definitionally not triggering the events you need to respond to.
But here we're talking about not being able to notice whether calc.exe opens in less than 300 milliseconds, not how fast we can react to it opening? It's the same thing with audio latency (and extremely infuriating when you're used to fast software where you can just start typing directly just after opening it without having to insert a pause to cater to slowness)
