Yep. There is a good chance they will improve over time. Funnily enough, sound isn't actually the reason for bad sound in the emulator. The issue is that it has to be generated in real time as its sent by the game. So if the CPU is already being worked out it will stutter no matter how optimized the sound is. To enable sound in general just open the Configuration and for Audio in the plugin section select jttl_audio from the drop down menu.