"i know it is not fullspeed but it is far from slow. neo4all underclocks the z80 and uses default of automatic frameskip to stay fullspeed. NeoDC strives for accuracy over speed, and because of that has exact clock speeds, no frameskip, and runs according to how the original console would (on a PAL machine it tells the neogeocd to be a pal neogeocd and run at 50hz)"
Dude, do a release WITH frameskip or underclocking then. As it is, Neo4All is way more playable then NeoDC, and so gets all the use from me.