iOS 12
Adjust software and hardware keyboard settings on iPad
If you have difficulty distinguishing characters on the iPad keyboard or manipulating a hardware keyboard, you can adjust settings such as the key repeat rate.
Tip: Rotate iPad to landscape view to use a larger keyboard.
Change the keyboard settings for accessibility
Go to Settings
> General > Accessibility > Keyboard.
Do any of the following:
Show only uppercase keys on the iPad keyboard.
Adjust the key repeat rate on hardware keyboards.
Use Sticky Keys to press and hold modifier keys, such as Command and Option, as you press another key.
Use Slow Keys to adjust the time between when a key is pressed and when it’s activated.