So let me get this straight (styles)
Some big fat 1920's Mongolian with manboobs can snap a jab and throw a left hook off it like it's totally natural, but a heavyweight boxing champion of the same era stands in an idiotic 19th century bareknuckle stance and gets beat up by everyone who looks at him?
Apparently everyone in the movie can throw modern boxing punches except the boxer. Because he's not versed in the Mystic Secrets of the East(tm) and thus has to be the bitch.