I know, it seems counter-intuitive, but I am to some degree relying on the fact that WWII tanks could not fire on the move, so in Assault Movement etc, in reality, the vehicle is stopped. Even the Sherman Gyro was disliked and often switched off. I suppose the problem comes with the fact that modern vehicles can fire on the move more successfully, but even then there is a balance of not going flat-out Vs gunnery control.
It probably needs an official answer to put it to bed.