Yes, the martial arts in this films consists of sloppy movie fighting, and some gymnastics, no genuine kung fu.
Shanghai Joe was also played by a Japanese, and whatever martial arts training he had it must have been karate or something, not chinese kung fu.
He does what looks like some sort of kata in one scene, practising moves on his own, and he even wears a karate dress then, if a remember correctly. Really stupid in fact when he was supposed to be Chinese!
At least the film itself is good fun, the worst thing for me is when SWs are dull, not whether they're serious or more light-hearted.
Both these types of films can be boring though