The GPU is running at 99%, the CPU at 25%. It basically completely utilizes a single core of the CPU meaning this is a single threaded process at this stage. The GPU running at steady 99% definitely shows complete lack of optimization. I bet they use different builds for testing.
It would be somewhat nonsensical to give the alpha-testers a different build than the one they use themselves, as having different builds could imply having different bugs. The game however is running alright on my rig, as shown in my previous post in this thread.
I suspect the main reason being that the single-threaded performance of a 3GHz core 2 duo is probably a bit better than on your CPU. Maybe not, as you seem to have overclocked the CPU. Skipped that bit on the first read.
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