yo guys, the Ki-44 IIb climbs to 5000m in 4' 17"
the Ki-84 Ia climbs to 5000 in 5' 54"
The incorrect reference was given for the Ki-44 Ia which arrives at this altitude at the same time as the Hayate.
Remember also that the Ki-44II is doing that climb rate without water injection and the Ki-84 is using ADI.
Both have butterfly combat flaps and almost the same wing and power loadings so their sustained turn should be the same.
The area the shoki would shine is in the rate of roll and we all know how the Fw190 used that to advantage...
It would also be better than the J2M3 which has a losey rate of roll beyond 325mph...