#186 GBC emulation slowdown (sound synch issue?)

[Tobias Käs]

When playing Lufia/The Legend Returns the emulation
slows down to 75% when you are in dungeons/cities. The
music plays "slower" compared to the real game and it
feels like graphics are a bit slower, too (but you
still can smoothly walk etc.)
In the worldmap, menus or during conversations the
speed goes up to 100% (ie. when you don't have full view)

I've played with the options, if I disable
synchronization, speed goes up to 125%
If I turn off sound instead, speed also goes up to 125%

So it's either 25% too slow or too fast ;)

Using Frame skip / Throttle I can keep the speed at
100% but the music becomes a bit choppy

Problem occurs in version 1.8.beta3 and 1.7.2
System is Windows XP and CPU usage is at 4% so it
shouldn't be a hardware speed problem