When entering big cities like Topolin on Livonia or Elektro on Chernarus, the Ps4 is not powerful enough to render all the textures correctly resulting in huge fps drops (i'm guessing less than 10fps...). It is almost impossible to aim correctly, I would prefer a shovel over a Lar in Topolin center town. I have the feeling that the fps rate went down even more with the 1.07 on console and the new shadowing. This is litteraly unplayable.
During fights, a full auto weapon shooting is like a fps bomb for every player nearby. I guess the ps4 is again not poweeful enough to calculate every shot smoothly.