UIKeyCommand (ExtraKeys)

Change how the keys respond on an external keyboardIf you have difficulty using an external keyboard, you can adjust the settings.Go to Settings  > Accessibility > Keyboards, then tap any of the following:Key Repeat: You can adjust the repeat interval and delay.Sticky Keys: Use Sticky Keys to press and hold modifier keys, such as Command and Option, as you press another key.Slow Keys: Use Slow Keys to adjust the time between when a key is pressed and when it’s activated.