I'm not great at any of the pacs, but I prefer their innate game plays, and think the speed-up hack is silly.
If you want the whole game sped up, turn off throttling. Now that's a sort of challenge. Or, for a somewhat more exotic feel, you can go for Pac-Man Plus! - the speed of which, right off, is like board five or so, but then there's a bunch of trippy stuff that really just makes it a kind of farce. Fun, though.