This is raw footage, so there is time between the gaiting. Either be patient, or jump to these after the first cycle:
:36, 1:10, 1:27, 1:45 (started trotting at the end), 2:20, 2:53 (cantered, how's that lookin?), 3:12 (cantered again), 3:36.
The last one after the canters looks best to me. She was better warmed up after a little canter. They seen to get better as the video progresses since she was getting warmer.