Hi Rob,
Try taking out anything in the scene that isn't needed/is excess detail that will not be seen.
The engine sometimes struggles to render lots of npcs and a lot of scenery at the same time.
For example, for the dock scene you would only need Little Italy and Central Island. New Ark, Downtown, Hoboken, Oakwood and Oak Hill cannot be seen from the dock and are therefore useless "luggage" for the engine to cope with.
Try taking out anything in the scene that isn't needed/is excess detail that will not be seen.
The engine sometimes struggles to render lots of npcs and a lot of scenery at the same time.
For example, for the dock scene you would only need Little Italy and Central Island. New Ark, Downtown, Hoboken, Oakwood and Oak Hill cannot be seen from the dock and are therefore useless "luggage" for the engine to cope with.