Correct me if I'm wrong but most GOG games run in Dosbox ? In Dosbox, you can change CPU cycles and frameskip settings (there's always an optimum value for the given machine). So a game running too fast can be adjusted.

I played Magic Carpet 2 about a year ago and it's as good as I remembered it. Which can't be said about all games, for example Archon Ultra which is frustrating.
http://www.youtube.com/watch?v=rw2yTKdtIp8