XYCat: I don't even know what poppin' in are you talking about so I can't tell whether I might know how to fix it or not :D
WilliamFrost: It's when the assets suddenly appear in a jarring way. For instance, your character is walking and the graffiti on the wall and the lights suddenly appear, it is a s though the game is having trouble keeping up with the assets. I don't know much about this stuff, but it is a glaring issue. All games have some pop-in but CP2077 is one of the worse.
That's an optimization issue and PS4 has it the worst because it's the weakest hardware the game runs on. Making that better will take more time because it's not actually something that makes the game crash or causing some severe issues, whcih is something that takes priority over performance tweaks.