Do you have any task killers or cache cleaners? That's all I can think of that would cause that problem.

Sent from my HTC Incredible using Tapatalk Pro.

 

No I think that's normal. It does that for me too. I'm guessing it's from using other programs and they need the memory space that the calendar and favorites were using, so when you go back and look at them, they have to load again.

 

After the sluggish cpu and battery claims of Sense on the initial Hero release it seems HTC went overboard removing animations and changing update frequencies for their widgets.