But would, it truly prevent the aircraft from meeting the performance calculations?
Highly unlikely. To go below the OEI floor on a twin with AEO would take some doing.
The rotation rate is academic on 2 engines.
I agree with the sentiment. Obviously the target is the FCTM rate but I am happier when any deviation is to the slow side as opposed to the fast.
If you’re too quick you’re into tail strike territory and vulnerable at a high pitch attitude and low airspeed, should you have a loss of thrust at that point. If you’re a little on the slow side, you use a bit more runway (of which you have plenty AEO) and have a higher climb out speed (which often actually increases performance). Balancing one against the other, I know where I’d rather be...