Plus you can always turn off things to get DreamSNES running faster. But really, whatever you do, don't post at DCEmu and make it sound like you're complaining about the speed. It is a free project, however dead it probably is, and such a post would be flamebait.
Super Famicast has only seen 1 release so far, but it already shows promise. It is slower than DreamSNES though.