Tune your typing environment to your habits
If holding a key too long keeps inserting extra characters you didn't want, lowering the repeat speed gives you more control. If you frequently need rapid repeated input, speeding it up saves time.
Check your cursor settings too
While you are adjusting input feel, cursor size and color settings are worth a look as well. Small changes in a few places add up to a noticeably more comfortable setup.
Frequently Asked Questions
Does this setting apply inside games?
Most games handle key input on their own, so this system-level setting often has no effect while playing.
What is the difference between repeat delay and repeat rate?
Repeat delay is how long you must hold a key before repeating starts; repeat rate is how fast it repeats once it begins.