I would have thought that as with any opposing aircraft with such substantial speed difference, the Bf-109 could have zoomed and boomed on it's terms, using it's fast acceleration in a dive and high speed (both zoom and horizontal) to negate the B-534 nominal climb and maneuverbility advantage.
Quite possibly. Not sure how many German pilots (in the initial days of the WI war) were trained for this. Many of them were very new to Bf-109.
Another thing is given the B-534 better hp to kg ratio might reduce the advantage of accelaration. It is clear that Bf-109 could leave the fight by dive (I've heard some thoughts about problematic cams of the early engines which made this manoeuvre problematic, but I'm not sure about this), but the same can be achieved by B-534 with its climbing advantage. Seems that polish PZL P.11 were able deal with much more advanced (and powerful) Bf-109 E with pilots of one more year of training using experience from Legion Condor, at least it was no turkey shooting over Poland skies. Guess the situation over skies of Czechoslovakia might be even more different, given the underpowered nature of (without no doubt more modern) Bf-109B/C with less experienced pilots.
But this would be indeed interesting question and how that would transfer to loss rates of respective sides.