Pyro already commented that he had found the reason for the lower than expected performance, yet we still see folks commenting as if they are seeing the final product.
I would expect to see a patch from Pyro and an attending explanation sometime tonight, or early tomorrow morning.
I too was looking forward to seeing the Ki84, as I had a blast with it in Brand W, but who is gonna quibble over 4 mph (388 vs 392mph)?
As an aside, I too am surprised at the mention of no WEP, but Pyro addressed that also with his comment that Busa is looking into it as we speak.
Be patient..........we'll get that Nipponese superplane you all crave.......