In my case, v 0.11.81 worked perfectly, and my phone is serious low-end device. No lag, no sound bug. Shtruck, I will gladly inform you about any bugs and errors in emulator (talking about what we discussed over private messages). I have a cousin over in US, he also bought this app on 2 different phones. One phone is also low-end, and second one is Galaxy S3. This new version (0.11.82) works great on both devices.
As for me, I deleted the app, as I am unable to buy it from here, and I don't like pirating stuff, but for what little time I had it, it worked great.