Sorry, this project is on hold like my other current and planned open-source projects (SoundSystem, Mupen64Plus AE, Mupen64Plus WiMM One, OpenBOR, Lxdream, etc) until I have transitioned out of the Air Force into civilian life and have a stable job and income. In the mean time, I will be focusing on getting a couple of commercial apps published on Google Play (sadly, I can not advertise those apps here on the forum because I need to remain anonymous to avoid more fake DMCA take-downs from the crazies that seem to have it out for me personally).
That said, I'll try and put out a small update or two when I have some free time, maybe in a week or so. Since the version without the GUI seems to run faster than the one with it, I suspect audio is not the only thing causing slowdowns, so it might be worthwhile to look into that to see if there are any areas for improvement. Also the audio itself should be possible to tweak for better performance if maybe I use lower quality or priority.
As for getting it on the Market, that might not be possible. I expect the exact same thing that happened to Mupen64Plus AE will happen to Yabause AE if it is published. Fingers crossed that without game screenshots maybe Google will allow it to stick around (the test I'm doing with Trev in the coming days should let us know).