Even on x64 emulation was slow even though it is listed as 'working'.
dbz is running the same way in mame and fbalpha for me, which means slow and full of graphical glitches, but afaik, that's how the original cabinet ran. I wouldn't bother too much with this one, dbz2 seems slightly better.
@johnodon I don't know for the first question, but for the second, there is a way to have a custom es_system file where you can add you emulator. Then you'll need to have a custom theme to make it appear in ES.
