PPSSPP options explained

[vostokapollo]

I have a couple questions about the buffered rendering.

Will it ever be possible to fix the transparency issues that BR has with games like GOW and FFT:WOT? (I.E. Squares around orbs GOW and blacked out map during options screens & shops for FFT) I have very little understanding of the programming involved, so, if it isn't possible to fix these issues, could someone gimme a rudimentary explanation as to what would prevent such a thing? My uneducated thought is it's because it lacks the transparency capabilities of CPU/GPU rendering, much like how certain image files can't load transparencies. How far off am I?

Also, how does BR effect sound? I've noticed differences in the noises of the games I play, in that they don't seem to have quite as much "depth" as opposed to CPU/GPU rendering and I was wondering what caused that.