Sorry, but there's no way.
I own a DS with M3 Simply (it is identical to the R4). And I also own a PSP.
UAE has gone through about 20 version numbers on PSP already and is still pitifully slow/unuseable.
And the PSP is 333MHz. That's 5 (yes, FIVE) times the clockspeed of the DS cpu. Basically, if the PSP gets 5fps, the DS will get 1. The DS has the extra coprocessor but the PSP also has one (which I assume is also faster than the 33mhz DS one). The PSP coprocessor (called Media Engine iirc) is also used in UAE iirc, but still runs too slowly to play even a500/a600 games/demos at decent rates.
