Looks like the performance is pretty poor, even without sound. What emulators are you running and what resolution are you using ?
Can you run with verbose logging enabled (switch it on in the Runcommand launch menu) and then post the log from /dev/shm/runcommand.log ?

@darkroll some info on this askubuntu thread https://askubuntu.com/questions/2007/how-do-i-change-the-plymouth-bootscreen

I can always fork using Git. Thanks for the heads up!