The PS3 simply doesn't have the graphics processing capacity that newer PCs have. When you see graphical images, including PCs, NPCs, mobs etc... load and disappear as you move around, that is normal. The PS3 can't display everything simultaneously, so there are range limits. SE tried to make the game as playable as possible for the PS3, but the PS3 is a very old and underpowered system. the PS4 will be much better.