Could it have a "Sideslip" option - to Barrel Roll like a large ship with the ruler turned on its side? Maybe at the start of the combat phase? Actionless? Not as maneuverable as some, but an improvement?
Tbh it feels not so much like a problem with the X, inasmuch as successive problems with other ships being slightly too good - the B having 5 shield and access to hard turns, the A having the best dial ever, the great turreted ships etc.
Edited by Sethis