This is a great map, it is something that all of us have been waiting for (something with bumpy roads). It is WIP I know that, the map is indeed very bright and it hurts the eye if played for long periods but can be temporarily be fixed by reducing the gamma to 0.75, it gives a better look.
After an hour and a half of playing the game with this map on a Miramar on a normal settings and disabled shadows here are FPS Statistics
FPS: 35-60 (No stutters, AVG: 45 FPS, FPS stayed in given range)
CPU: Intel Core i7 4770 @3.9 GHz
GPU: Nvidia GeForce GT640 4GB @797 MHz (bottlenecks CPU a lot)
RAM: 16 GB DDR3 @1600 MHz
Playing this map was a very nice experience because it gave a simulation of how my country roads are too (they are very bumpy). I love this map and Don't give up on improving and increasing the size of this map. Have a nice day ahead !