Rev, I had the same issue. Got it when it came out, and I played it for about an hour and a half before I got pissed off about it and haven't played it since. Exact same problems as you.
sometimes games are funny like that though. it took me four separate tries at fallout 4 to even get into it whatsoever as it was my first fallout. now it's in my top 5 games of all time.
after all the stuff I got excited about from E3, I decided to try this for the second time. about an hour in and its much better. I updated the system file and the problems I had before are gone.
Did about 2.5 hours on it today and I gotta say I am enjoying it. Still getting used to the controls, but they seem way more fluid and reactionary than when I tried the first and only time the week it came out. What I will say is the game suffered from a super weak opening. Seems to be getting better as I go along.
also noticing there aren't random frame-rate drops, lag, and seemingly misplaced loading/saving pinwheel screens like the first time. they had to have fixed some bugs at least for the ps4.