I'm curious as to why noone else seems to be having the same issues as me. I am getting roughly double the performance on my Bootcamp Win10 iMac + GTX 680M running the 0.8 runtime, versus my brand new kick ass Win 10 gaming rig with GTX 980 on the 1.3.x runtime. 80+fps versus ~40. The profiler tells me there's an awful lot of time wasted waiting for the GPU to sync. Am I the only one? I've freshly built a machine, and everything newly installed (several times just in case I made an error somewhere).