As being said in the title , the zone structure limit doesn't allow you to build freely for your needs
For exemple , if you build the easy water cave of island and put 2 floors , you can't even build anything on it ...
Please make it almost double , it's not the proper way of optimizing your server performance and you guy's know it , optimizing shouldn't be in the detriment of the player experience .
also for the Outside building enjoyer , IN PVP , this game isn't designed to live outside . I don't want to see your comment , neither ill answer to it .