I'm currently playing on the base PS4 and my framerate is barely holding during duties and in cities constantly dropping to what seems like single digit FPS,

I remember there was an option to drop the game to 'Standard HD' which made the game run at 720p, Whereas now I only have the PS4 Standard which runs it at Full HD and the PS4 Pro mode which I cannot use.

I've already done what I can do such as turning off player effects, turning draw quality to 'Normal' and water refraction to 'Off'.

At the moment it's making high end duties almost unplayable at times.

Thanks.