The GP32 version mode runs fullspeed at 133Mhz but with out music.
Originally intended as an entry for the GP32 revival competition which never happened, this was something I always wanted to port across to the GP32. It's turned out rather nicely too - much better than I anticipated. There are separate FLU/BLU and BLU+ versions included in the binary package
I also have a Dingoo A320 port too. I know there already is an A320 version but I did my own version of it - which is faster and has a nice full screen display. This will be available shortly.
UPDATE: I've updated the Binary Package as I originally included a slightly out-of-date executable for the BLU+ version. The FLU/BLU version was correct. The BLU+ version is fixed in v1.01. You should download the Binary Package again if you are using the BLU+ version.