500 players game slower and slower

Hello everybody,


I play a 500 game and the game got slower and slower. In the meantime I have to wait after each click and somehow the selection will appear. Both at units, at countries or even if I want to move the map. So now I need the estimated 30 times the time, it annoys without end ..


Sometimes there is also an error message "to many lines".


I have already tried two other browsers and emptied the cache, nothing helps.


Is it possible to change settings somewhere?