play the game without mods on its lowest settings, then gradually increase settings, if its ok, then its prolly a texture streaming issue once the mod is applied, if its the 3gb 1060 it might also be a vram issue,
I have modded Skyrim back in the day and had no issues until I got a texture overhaul that messed my game up and had to re-install everything several times to get it working right.
Its not your PC nor is it drivers its the mods. I suggest looking at community tips for the mods you have installed to see if the issue is common and if there is a fix... Worst case scenario you have mods that conflict and if you have a lot of mods it will take a WHILE to figure it out.