The extremely low resolution allows me to use shaders quite freely without a performance impact. There's a few post processing shaders which are event controlled to set the atmosphere/accentuate certain things. Then there's more shaders on stuff like water and lava. It all looks really nice in motion, and doesn't slow down the game one bit. There are of course options to turn them off if you're on a really old machine or something, but I haven't noticed any slowdown. The game is way more taxing on the cpu than gpu anyway, even with all the shaders on.
And yes Lucid, I will be selling it.