If I add a view like so:
var view = doc.Views.Add("Test", DefinedViewportProjection.Front, new Rectangle(100, 100, 400, 400), true);
view.ActiveViewport.ConstructionAxesVisible = false;
view.ActiveViewport.WorldAxesVisible = false;
view.ActiveViewport.ConstructionGridVisible = false;
view.ActiveViewport.ZoomExtents();
The view does not have anti-aliasing (top: added view, bottom: existing view in the same orientation). Note that the PNG compression does degrade the effect a bit.
When I save the document and re-open it, the view looks normal, i.e. with anti-aliasing. This would not be a great problem, except that the newly created view has significant performance drawbacks for my custom drawing routines. With three such views my FPS goes from 12 to about 3-4.
Is there a way to get the correct view immediately?