I was wondering about that. My computer can handle a lot, but honestly, with an early build, I'm not too worried about a little lag. I cant imagine what the asset pipelining is like for 3d gaming!
I really liked the use of depth of field. It made the world feel like a super high res minecraft when I looked out in the distance. That's what started getting me to shoot enemies from afar and it totally took me back to playing the first Halo. The enemies even remind me of the flood a little. Definitely keep up the good work! It already has the right feel to it.