Is rooting required

[Archimedes]

Well it's all up to you. Even though I have a rooted device I haven't tried this out yet so I cant give you a definitive answer. What I can tell you is that people tend to put a lower cpu speed in order to achieve better results. But you should know all about it if you read step 8 of this thread: http://forums.ppsspp.org/showthread.php?...6#pid38976
You might even wanna look at step 17 if your device has a CPU with multiple cores.