Hi, 

Before using XamMap, we used Bing Maps to draw pushpins on top of Bing Maps (Silverlight). We could show ~5000 pushpins while still navigating quite fluently. The pushpins are just jpg files (because they render faster than .xaml pushpins)

Now we also needed, along with the pushpins, shape files. This is technically feasible with XamMap, but when we render the same map with the same pushpins (jpg files), navigating the map becomes practically impossible with 5000 pushpins. 

Is it possible to increase the performance for this? What is the threshold for pushpins to be displayed on the map?

We already add the points by first creating an empty elemencollection

MapElementCollection elementCollection = new MapElementCollection();

adding the elements to this collection and at the end setting 

map.Layers["symbolLayer"].Elements = elementCollection;

Thanks in advance,

Roel