Nobody watches Batman movies for good acting on the part of Batman. None of the actual Batmen have been "good". It's just a rich dude during the day who wears a mask and cape at night.

If the villains are good, the movie will be good. If the villains are stupid and corny, the movie will suck. Fucking Orlando Bloom could play Batman and nobody would really give two shits as long as everything else was good.