I'm expecting rather poor roll response due to sheer size and related inertial problems, that top speed is only 320mph from it's 2800hp also indicates a rather high drag coefficient, meaning it will zoom poorly, accelerate poorly, lose speed perhaps even faster than the brew, and add in induced drag from the turn, it will bleed E like a dump truck. Also of note, it's out climbed by the G4M.
Assuming combat weight of 20,000 lbs, wing loading is 39.76lbs/sqft, compared to the Me 410's atrocious 60.82 at max takeoff weight, and the Ki-43's excellent 27.99 at max takeoff weight. At typical weights, the Ki-43 has a wing loading of around 23lbs/sqft. In other words, the Beaufighter is right about in the middle of the spectrum. For comparison, a K4 with drop tank only has a wing loading of around 46.7lbs/sqft.
Don't get me wrong, it might be a moderately successful BnZer with that gun package (for a pass or two any way, with only 60rpg), but it's no hidden gem.