More options for v-beam

[phly95]

I checked out the v-beam speed hack, which is supposed to speed thing up by doubling emulated GPU rate. For me, it did the opposite, decreasing my framerate. Turns out, it seems that it is supposed to counter the CPU bottleneck, not the GPU. For me though, I got a good CPU and a crappy GPU, so could you please add the option not only double the emulated graphics, but half or lower it a custom amount, like in PCSX2.

[neobrain]

No, it doesn't work that way. And for the record, Dolphin is not PCSX2.