Try setting your car traffic to zero, I did that and NYC (I use Aerosoft Manhatten) became amazingly flyable.

Scruffyduck software have a nice freeware tool that will identify duplicate afcads. Its called Airport Scanner and it can be found under the download centre function at http://www.scruffyduckscenery.co.uk/Steve

i performed a scan but there are no duplicate afcads

Try setting your car traffic to zero, I did that and NYC (I use Aerosoft Manhatten) became amazingly flyable.

road traffic is already at zero, in laguarda airport fps indicates about 60, but still freezes. :S

i have no addon scenery in these locations. i tried different display settings but no way. is there another fps intensive area for try and comparsion?

Toyoko

Toyoko? Do you mean Tokyo or somewhere in Tokyo? If yes, i don't have problem in Tokyo