I have GPD P2 Max, the keyboard is ok for typing letters, but punctuation requires special key combos, and symbols used in programming like brackets underscores

I have GPD P2 Max, the keyboard is ok for typing letters, but punctuation requires special key combos, and symbols used in programming like brackets underscores, commas, plus, equals, etc also have unusual key combos. I’ve been unable to use it for any meaningful programming work. The fan is also loud even on quiet mode settings. You need to underclock it to reduce fan speed to what my opinion is comfortable for working in a quiet room.