Tbh I thought it was playing up. I have a gsync monitor and with a 1070 I should be getting constant fps. Gsync doesn't even do much at high refresh rates...
Vsync and gsync ruins my fps in d2, i turn vsync on to 165fps and it never lets me go above 60 and if i turn on gsync at 165hz, my fps never gets above 120. If i turn both off, i get 170-200
Just to show everyone that has told me to try full screen or look in the options this is literally all that is displayed, and these menu options didn’t display v-sync prepatch. Yes v-sync is turned off in nvidia control panel.
Also make sure your monitor is set for 144hz. As in I use the asus pg278q and there is a quick button to change the hz settings. ( not sure if it the same monitor you using , but may have a feature like it. )