This video is from their showcase, which we got to see in Episode 5. We only got to see bits and pieces of their routine throughout the series, but watching the whole thing is nothing short of astonishing.
I had to pause and rewind twice because I could not believe that a human person could move that fast. Gravity? Lexi does not know her.
News – The Daytona Routine From “Cheer” Is On YouTube, You’re Welcome