Board Thread:The Flash discussions/@comment-9346948-20180523070317/@comment-25349418-20180524183620

Kaestal wrote: Also we saw she was using time powers, so that could have been a factor to help her catch up.

It could also just be cinematic effects to portray time travel. First, they show us what happened the first time, and then they rewind to show us the second time when Nora helps out.