Agreed -- I just wanted to defend QEMU (and my own work, by extension) for a moment. Also, code can always be made to go slower so I'm not sure if "unrealistic

Agreed -- I just wanted to defend QEMU (and my own work, by extension) for a moment. Also, code can always be made to go slower so I'm not sure if "unrealistically fast" is as bad a "unrealistically slow."