Why is the Avatar function not tracking me correctly. How to fix it?

CyberLink YouCam's facial tracking ability for avatars may decline when you move rapidly or move out of the webcam frame. When the facial tracking result is lost (the avatar's actions does not sync with your actions), please calibrate by placing your face in the center of the webcam video frame and then look straight at the webcam. CyberLink YouCam will automatically re-calibrate the facial tracking.