Is it possible to take the xbox processor out and upgrade it? I think its not possible, but I'm just wondering.

no. i wouldn't be to worried about the processor, it runs linux (if thats what your doing) fine. The ram is probably whats slowing you down and makeing emulation a little harder. I have heard it is possible to solder in another 64 megs of ram, but don't know if it's true.

Its not possible to upgrade the processor, but when it first came out, I heard that you can solder more ram in, but it won't recognize it.