I agree with you -- but aiming for 1ms performance is pretty hard. That is 1/1000th of a second. Your keyboard probably has higher latency than that. Physics cannot be defeated in this regard.
Expanding on this, there's a detailed analysis of the various contributors to editor latency (from keyboard electronics to scanout) by one of the jetbrains devs at[1]. They show average keypress-to-USB latency for a typical keyboard of 14ms!
Yes but it takes longer than that for the signal to reach the usb port. And i doubt if many of us are typing at 1000 keystrokes/second. Apparently that's around 12,000 words/minute assuming average word length of 5 characters.
1: https://pavelfatin.com/typing-with-pleasure/