Your physics score is a bit low (cpu). For example at stock clocks I get around ~11k score for physics. Your 2600k at stock should yield around 9k. The cpu is underperforming a bit, maybe due to unstalbe overclock. What I would do is return your cpu to stock, and redo the test at stock clocks. Your overclock might be causing issues. Clear cmos and return to stock, and rerun the tests.
As evidenced by that achievement, something is holding back your cpu, I don't know what though.