Hi DRAKOSEA!
I took to heart the performance issues you have experienced and updated the game.
You may now choose the levels of detail in the scene in case it could work better on your machine.
I recommend leaving the shadows on High since it affects draw distance too much, and then playing with the rest of the settings as you wish.
I have updated the game with Display settings, some changes to performance and lighting, bugs, collision and even added an easter egg.
If you care to try it again I would appreciate it very much!