Not impressed with the optimization at all.
running 4790k@4.5
Sli 970s
@1440p
cant get a consistent 60fps at all. sits around 50 most the time.
using mostly very high with 2xmsaa
Odd, I'm mostly getting 90+ fps with the same setup. Try turning ultra grass to very high, same with reflections (dunno if necessary for reflections, but ultra grass is a known GPU hog). Also, try turning shadows down to high, but then go into advanced options and turn high resolution shadows on.
When I tried most things maxed out, even then it was typically above 60 fps. Do you have all the advanced options turned on, I haven't tried any of them except for high resolution shadows.