I haven't launched from the menu so I can't confirm the sound quality is any worse.
I turned graphic detail to low and tried it at 640x480 but it was kind of laggy. 320x200 reduces things to the size of a postage stamp, but it's fast...
As a work in progress, Super Melee seems doable however when I try to visit a planet it crashes; when the UrQuan drone comes to warn me about approaching Earth, the UrQuan just sits there twitching - - no speech/text.