Poor performance on the ground

@Hester40MT @PunchDkns99 @Crunchmeister71 @Pascalm207 and everyone that saw improvements in performance on the ground when removing the World Updates.

I updated my findings in this thread. Basically after further testing I found out that uninstalling the whole WUs package isn’t necessary to get the FPS improvements. Only the 3d photogrammetry cities parts need to be deleted. Airports, points of interest, procedural buildings and bush trips etc have no effect in performance. The interesting part is that those objects are only a few hundred kilobytes in size they can be easily uninstalled and reinstalled for testing.