So after trying everything over the past week, and I mean everything, I cannot get rid of microstutter with my 1070 with a locked 30 fps.
DXTory, RTSS, K mod, in game limiter, adjusting every setting from low to high, every nvidia refresh/vsync type, and every combination of all these things.
My test is rotating the camera while standing still. There is a bit more stutter when I have everything cranked to high, but reducing everything to low still gives visible micro hitching while rotating the camera.
If I'm running forward anywhere in Duscae I get the always present microstutter as well as hitching as it loads assets.
Other games run at a rock solid 60 fps at high settings on this machine (tested Prey, Dark Souls 3 and Shadow Warrior 2 just to make sure nothing was wrong with my system).
I'm shelving it for now hoping Square fixes it. This port is really a bit shit.
(I5 7400, 1070ti, 16 gig RAM)