I put off playing this untill the most recent patch, I don't know how it performed before, but I am having no problems playing at 4k with everything on high and all gameworks stuff disabled.
I am about 10% complete according to my save game stats, seems a decent story so far, but my god is the batmobile overused, it's like every puzzle has to involve maneuvering the batmobile into some convoluted location to use the winch or the charger.
I think it would have been much better if the batmobile was just for getting around, and the occasional chase scene, rather than some kind of silly strafing battle tank...
Thankfully the parts that don't involve it are awesome, and I love the stealth predator parts as much as the previous games, nothing is more fun than doing an inverted takedown and leaving a goon strung up from the ceiling.