Making an intuitive keyboard with only a joystick and a few buttons

I have an 8 direction joystick and a few buttons, layed out like an original ps1 controller but with a joystick instead of the d-pad. I am trying to come up with an intuitive on-screen keyboard that's easy to use and quick to understand. Maybe there is a quicker way to type than just endlessly moving the cursor to a key on the keyboard?

If you need more info just ask, thanks!