First off, I would like to say that my computer is really crap. It only runs smooth at most 2D DS games and stuff, but the 3D is most of the time really slow. This time that wasn't really the case, and I was amazed.
This thing almost runs at about 100% on my computer, except for some parts where they talk, don't ask why. Surely if you would try it with No$GBA 2.6a and with the nocash 3D renderer, you would probably get 100% throughout the whole game.
Yes, I am using the nocash 3D renderer because it works good. Note that the graphics look NORMAL if you choose OpenGL or play it on your DS Lite.