We'll be optimising at some point, there's plenty of room for us to improve. Until then one thing that will help is reducing the number of objects you have in the world (like stacks of logs) if you have anything like that.
I had a huge stack of iron and first i thought it was the iron stack that caused it but now it is gone and the performance is still as bad as when the pile was there. Maybe it's 2 fps more. In the unity launcher i lowered the quality but it did not seem to help.
