Emulator hanging in Project Diva F

You need to go through the songs one time first to compile shaders. All games will compile shaders the first time before they're loaded from cache, that's perfectly normal.
I recommend just watching the song video as it also compiles shaders that way.

Awesome thanks! One last question. Is there a way to transfer the shaders to a new build of RPCS3? So they don't need to be compiled again.