Hey! Thank you a lot for the comment!
In the future settings will probably get better options as this is still a very early prototype of the game, and optimizations also are a concern in case of future versions.
Unfortunately I don't quite get what you mean with the "1 N 2 to N 1 2" thing, do you use arrow keys to change gears? I suspect you might be using the arrows as some kind of state-changing input, while in reality they're just a way to apply some constant force to the stick while you hold the key. But it's just an hypothesis, it's difficult to help people without looking at their screen lol
But I guess I'll have to make the gear shift more intuitive, thanks again for the comment <3