I just got myself Thrustmaster T.flight Hotas One and I'm surprised it works almost flawlessly with such an old game, but the throttle starting position starts me off already moving. I thought using the "decelerate completely" button would reset the starting position, but sadly game devs rightfully saw it would cause issues. I wouldn't mind it as much if I could rebind the "decelerate completely" button to anything that isn't backspace, but that doesn't seem to be possible. Any ideas on how to fix this?

Just realised my genius self didn't specify... It's for the original X game