On the console itself, you can change some graphic settings, in the menu [sound and screen], but I can’t say if they really make a difference in performance. I think it’s a good idea but we hardly see options like this in other games on the console.
My console is a basic ps4, a true warrior, i know its limitations but i would like to have the best visual experiences possible, i would not wish i had to sacrifice performance for graphics or vice versa.
forcing 720, is something you do via console setting. You would do this for few of end gen of ps3 games, that had ps4 releases. It helps a abit to run better.