I thought you did pretty well, considering. I thought, however, that you were fighting the controls too much. You'd have had that 109 much sooner if you weren't fighting the nose bounce. I'd suggest playing with your stick settings on that one, or when you're about to start shooting hit combat trim for a second to help trim you out.
flaps:
I noticed that you did a roll and dive when chasing the 109, and you popped a notch of flaps, but left it out well into the dive. That will just slow you down right there. I think you left that notch out for a good 2 minutes. I also noticed you were flying at 200mph and had 3 (4?) notches of flaps out. I'd suggest if you have that much speed use it rather than trying to dump flaps and turn tighter (then again I'm not the best at flap fighting, this is just my intuition speaking for itself here).
Would it have affected the outcome of the fight? Probably not.
Good fight!