
A 6 month old puppy, full of the joys of showing, stands to be assessed, movement can be seen on your up & down, if your judge moves to the side whilst you're doing & up & down then they would see the profile movement too. Whilst I understand that you want it all to be perfect, do judges of your breed penalise this behaviour?
The only thing i can suggest is that if you start at a slower pace, let her go ahead of you, she may think it's a game or race when you're running, then slowly speed your own gait up.
My 10 month old puppy will move fine (so long as we're not following another puppy in the ring), but he won't stand still to be assessed, he's fine at home & was fine at ringcraft but hey ho, he's very outgoing & enjoys the attention!