Render XAML to video or PNG files?

Question

I have an application with complex animation in XAML as a background, and it slows it down significantly.

Is there an easy way to export XAML to video or a series of PNG files?
Will it contribute to performance by replacing XAML video?

Answer 1

Create a blank video, put it in Expression Encoder and add XAML as an overlay.
Not the most elegant solution, but it works.