I guess things aren't going to improve, even though I want them to. Living in/close to a city is the only option left for humans. Our minds are suffused with materialism. We are a generation brought up to prefer things that are inherently fast. We would not be able to settle into the countryside for our frame of reference has been speeding at a wild pace since we were born and we have reached a speed at which we cant stop.
I'm a bit more optimistic. I moved out to the country a year ago, for cheaper rents and the necessary solitude to get some work done. I've got broadband delivered wirelessly so I can still stay online all day if I choose. But it's nice to get outside for a run or have a laugh at the cows. I think people can adjust easily enough.
Although the OP does not speculate about it, my guess is that the noise of city living is the only important mechanism by which city living interferes with my mental state.