I tried turning off the sound, didn't change much. Game was still too fast. And we weren't saying that there was a problem using the sword, but a touch screen-game only (or mostly only) is hard to play with the game running that fast.
Well, I tried here changing to Unlimited MHz Disaster 100% (and also 50%), the game's speed improved wonderfully (actually, it got slower, but it's much closer to the original speed than before). With opengl's renderer, it works better with Unlimited MHz Disaster 50%.