I have a problem with ATC in my Xplane 11 (steam version on Windows 10). Everything is Ok for my framerate in any condition but when i open the ATC windows my game is suddenly very slow and freeze... If i close the ATC window its the same.
It seem working ok in the Seattle Airport but it freeze in other place i have try... I have install free photorealist scenery in europa zone maybe it's the problem... But i have try to fly in a place with no photorealist scenery installed and it's the same...
So i can't use ATC :(
Any idea ? Thanks