@MadWizard25
I can confirm that your video shoudn't be the entire problem.
I've the exact same card with 1920*1024 resolution and I experienced many freezes (outside whiterun, going straight forward to the down river for example) and game loading when directly outside.
I mention also that I freshly installed STEP and skyrim for a new game.
After, optimized textures the problem has been solved (at least for the 5 hours I played last two nights).
Just few changes on my config. uGrid => 7 and shadows configured with this values https://skyrim.nexusmods.com/downloads/file.php?id=7638