Can you hit in the same circumstances with a Mossie16 or a Ar234?
If "no" then the problem is your calibration during the bomb run. These 3 planes are much faster and will continue to accelerate for a longer time. You cannot just line up on target, calibrate 2 seconds, and drop.
You have to give yourself an entire sector of approach time to steady your speed (if not more distance!)
Any adjustment of throttle, RPM, turning, banking, adjusting course, opening bomb bays... Anything will throw your calibration off. I bombed just fine with it offline. Only thing is most folks don't know HOW to bomb in these faster planes. It takes more discipline to get right.