Do the reflectoring (what the Factory does) on (my) demand?

I have some performance issues when showing a large object (= many properties) in the PropertyGrid.

One enhancement for me could be, doing the reflectoring and retrieving of properties not when the grid is shown in my application but in the background. I can create the grid in memory without puting it in my visual tree, but the retrieving of properties only happens when it becomes visible.
Can I call some method on the grid object to force it to load all (also sub-)properties on my demand before I show it?

-- B