The whole health system is very messed up you have to keep checking your pipboy stats screen to see what addictions or diseases you have got as they have a big effect on your ability, agility & general well being! The messages flash by so fast its easy to miss them you most likely have the Fallout clap equivalent or some other nasty rad disease
Still amazed Bethesda would allow so much BETA time with another 7 hours tomorrow as this game is going to get slaughtered in its current state. Some of the animation is very bugged Ghouls walk towards you then walk on air up in the air so you cannot even shoot them!
Performance I found to be very solid on my 24 Core Ryzen 1920X + GTX1080 @ 4K but gfx are so basic its not surprising!
Try to explore tomorrow you will be shocked how little actual location content there is its so tiny I estimate no more than about 10-15 major locations & perhaps 50 smaller ones....Fallout 4 GOTY has 424 locations on the map & another 70 or so not mentioned on the map (many with extensive underground bunkers & or lots of rooms).
76 does not appear to have ANY at this stage! LOL