Water looks good in screens, but the movement and "physics" are pretty basic, and no interaction with the character.
Someone on neogaf posted comparison pictures between performance mode and resolution mode, i think i saw better reflections in performance mode, i should check myself to verify.
foliage interaction is a letdown, again in uncharted 4 it reacts to main character and allies AI, but not ennemies. They could have done that at least for Alloy. Maybe in a future update, or there is no more room for improvement.