I know for steam you cannot make the whole game "low quality," but there might be a few things you can try that might help to make your game run a bit more smoothly:
-Turn off text bubbles
-Turn off shadows
-Turn particle effect to "low"
Go to options then graphics to change these if you already haven't. It might not completely fix your problem, but it might help a bit.
This post was edited by tealeaves on Nov 30 2015 05:34pm