Lag issues on offline world.

On ps4 version, whenever me and my partner play together (splitscreen) player 2 has lag issues. On a local offline world. For example being quite a bit infront of enemies and suddenly getting killed because the game thinks you are right in front of them, or the issue of sliding back to a chest you just opened and walked away from. Or using a pitchfork, going one turf square over to dig it up and suddenly you are back at the turf square you just did. Its very annoying and makes it basically unplayable.