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I do not agree entirely with your post, I feel the Dora 9 lacked in all departments,
what the Luftwaffe needed was the replacement and that was the Ta 15H-1 or the Dora 13.
the Grünherz book produced some years ago covering the Dora fits my evaluation the RAF. RCAF shot up and spit out III./JG 54 and JG 26 on a continual basis and that was not being outnumbered
Now if we take into account the contemporary (44-1 fuel) P-51B, then I would say that it is even with the Fw-190D-9 (in speed and climb, maneuverability is ?) up to 15k ft. Above that, the P-51B has a generally superior rate of climb and a rapidly increasing speed advantage (14 mph speed advantage and 300 ft/min rate of climb advantage at 20k. At 25k, the airspeed advantage is 18 mph and equivalent climb. Above that, there is no comparison).