Same issue here, just will not land
May 9 2016
Added pic showing low CPU usage and low gpu usage and it's very common. I keep hearing that the CPU is limiting the GPU usage but how can that be if it's only around 25%.
They should had this fixed by now as it was around in Arma 2 as well.
OS on SSD game on another SSD
Added pic showing you actually usage of GPU and CPU in game
lowgpu_cpu usage.jpg [^] (388,074 bytes) 2013-09-11 00:40
the 0% is the GPU usage which it was changing to 0% to around 18%.