To put it simply: I don't have a bleeding clue

[Kiyoka]

Well, the info is there

But basically, an emulator is doing something that was not supposed to be done. And that is, emulating a different architecture. And so it needs a lot of cpu power to b able to do that.

It can still get the work done if you apply enough cpu power, but it was something that was not supposed to work that way, so it's "expensive"

Oooooh >=o That makes more sense to my un-tech like mind.