The P-40 takes a polished pilot to fly it, Its slow acceleration, no climb rate - horrible top speed. Its only good in a dive, learn to Boom and Zoom and get away from being cornered.
I had a few 9 kill sorties, but ultimately it doesn't take much to get caught and burned in a P-40, in a late war ride you have quite a few ways of escaping combat, in a P-40 you have absolutely no way except for diving.
I flew the plane and had fun in it, I ultimately choose to fly the C.205 just because it had a lot more to offer in the Late War Arena. 400mph at 15k, great climb rate, decent roll rate and a pair of 20's and still 25 eny. It was a leap ahead vs a P-40.