FPS are horrendous in Brisbane with the city pack and YBBN v2 after WU7. 10-15 fps. In comparison I open YSSY FlyTampa YSSY and Orbx city pack and i get 40-50 fps with ai traffic. Sydney is more dense and a much greater detail level in comparison and get better fps. I have deleted all my scenery dat files and content xml and no difference.