Quote: "@Errant AI they were blank maps m8"
I figured as much. I only mention the other things because there seems to be several indicators that the engine is bottlenecked in some areas well before hardware can make a difference. Your rig is clearly a monster so it is really odd that you would have sub-100 fps in a blank map. Are you running at a very high resolution maybe?
Gigabyte P67A-UD4-B3, Intel Core i7 2600K, 16GB Corsair DDR3, EVGA GTX 970 SC, Win7 Pro 64-bit SP1, Primary monitor @ 1920x1080, secondary monitor @ 1024x1280
