Thank you for contacting us.
In fact, the loading of example user controls is not related anyhow to RadPanorama
and the same approach could be used. I am sending you a small sample project which demonstrates this. Note that moving the actual control using an animation will cause performing lots of layout operations and will lead to lags and flickers. Therefore, we only animate a blank white rectangle and make the control visible at the end of the animation.
I am not sure what do you mean by "jumpy" but if your only goal is to improve initial loading of user controls and animation is not obligatory, then you might just need to preload your controls/data initially. If you need any further assistance with this case, you can open a new support ticket and send us a sample project which demonstrates your scenario. This way we will be able to investigate it and provide you with a possible solution. Also, if you have any other questions, feel free to contact us.
I hope I was able to help.
the Telerik team