bintananth
behind a desk
I was giving a comparison for just how big an An-2's engine is, FWIW. The Nakajima Sakae used by the Mitsubishi A6M was the first one I thought of.That has absolutely no correlation with the An-2, which is a massively bigger aircraft with a high-drag frame. Your argument is like claiming a semitrailer should be super high performance because it has more horsepower than a Porsche.
Think engineering trade-offs: You have this much power, here's what you can do with it but you can only do some of it this time.