MacOS key repeat for keyboard beyond normal settings

This is the fastest you can set when going into settings:

But there is an even faster way; you can change the preference keys by running the following in Terminal:

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defaults write -g InitialKeyRepeat -int 10 # normal minimum is 15 (225 ms)
defaults write -g KeyRepeat -int 1 # normal minimum is 2 (30 ms)

The changes aren’t applied until you log out and back in. KeyRepeat can’t be set between 2 (30 ms) and 1 (15 ms) though.

KeyRempat4Macbook

There is also KeyRemap4MacBook software. the one from StackOverflow uses it and set the repeat rates to 40 ms and the initial repeat rates to 150 ms. StackOverflow

Origin: Reddit