Thanks so much for giving it a shot, happy to see you put your mark on the leaderboard! I'm not quite sure I understand what you mean by the camera function you describe and say you would prefer, mouse delta translates directly to orbit movement in both cam modes as is - or do you mean you'd like to rotate the camera itself instead of having it orbit around the ship?
I should also add that in horizon-alogned cam mode you can click on enemies to focus the camera on them, which allows you to track them without moving the mouse.