Tune key-repeat preferences without restarting or logging out of your computer... more than once 😅
Initial delay: 180 ms
Key repeat interval: 30 ms
These terminal commands let you set key-repeat values below the minimum available in system preferences. Copy them into your terminal to set the chosen key repeat timings:
defaults write -g InitialKeyRepeat -int
defaults write -g KeyRepeat -int
Copy this command to disable press and hold for special characters:
defaults write -g ApplePressAndHoldEnabled -bool false
Note: You must log out or restart for these changes to take effect.