Looks like the app alters the playback speed and that may explain the unnaturalness of the videos: > Through the app, users can create 15-second to 1 minute vi

Looks like the app alters the playback speed and that may explain the unnaturalness of the videos: > Through the app, users can create 15-second to 1 minute videos and choose sound tracks to accompany them, use different speed options (time-lapse, slow, normal, fast, and epic) and add pre-set filters and effects. https://en.wikipedia.org/wiki/Musical.ly https://en.wikipedia.org/wiki/Musical.ly