The P-51D Conundrum

[DoubleTap68]

Perhaps I'm misusing this legend, perhaps I spend too much time with it down in the weeds, and let me apologize if this has been addressed somewhere else in this forum.

I'd love to hear you guys comment on the performace of the P-51D. Seems fast, and has pretty good quickness, but, to me, it's very unstable when you need to turn in a hurry. Any nudge of the rudder when you're in a tight bank makes her want to flat spin in a hurry.

Am I doing something fundamentally wrong with controlling her? Is she purely a high-altitude beast? Is she gimped in the game somehow? Comments welcome.