With a standard game on a conventional branch, about 40 frames are stable at the maximum distance. At the test of updating with transport without visible transport about 30 frames with peredicheskimi friezes. When you ride on the transport, strong friezes start when drawing the neighborhoods, frames fall to 20-25, rain falls to 17 and does not rise above 20. There is a serious drop in performance, I hope you correct it.
Also in many places the texture is not properly applied. A lot of bugs! But I wish you further success, you have done an excellent job and we are all waiting for you to get things right in the near future. Good luck!