I originally thought to edit Ludendorff into merely a supporting villain, with Ares as the clear lead villain (instead of two lead villains). But Ares is so weak, that Ludendorff offers the more interesting villain of the two.
Dr Poison had the potential to be the most interesting, but the footage is insufficient to really pull that off.
Perhaps the solution is to edit out the Ares scenes without his armor/helmet. Then dub the remaining scenes in ancient Greek (Because why wouldn’t Ares speak in his native tongue?). That might work if enough shots with helmet can be re-used for the climax of the battle, once Ares has lost his helmet.