Hi! Thanks for the comment!
I am working to optimize the game overall, so it runs better or any machine, and I will try to have different quality settings as well. That might solve it soon, but unfortunately, I don't think it's possible to change the settings on the current build.
And for the 2nd question, right now it's not possible. It's something other people also suggested I include, so I will definitely try to get it to work and might add it with a later update, together with more radio stations.