WPF 2D Performance

Question

Hello all,

Currently I'm busy with a GIS app for a company. We decided to go with WPF as it's rendering engine makes all the graphics manipulations and other cool stuff easier and faster to implement. I do, however, have a problem. On rendering a couple of thousand polygons on the map performance lags, especially when I need to drag a "rubberband" line across the screen. The graphics is jittery and not smooth at all. I tried considering GDI+ as a valid alternative but I'm sure that that might take more time to implement. Does anyone have a solution for me. It wll be well appreciated.

Thanks

Nathanael