frameRate problem with movie and Controler

[knupel]

When a movie is on, and the user go on the controller the frame go down to 10fps

[knupel]

The problem is not from the movie or shader, there is a same behavior with a classic item. That's happen when the rendering is very very busy. That's not happen when an other sketch is selected depend a the charge is supported.
The problem to identify it's the frequency, because sometimes that's happen and after dissapear after few minutes... very weird.