Why going to premier for an issue so simple.
Try making the properties on the timeline match that of the file.
See for example the frame rate of that clip is 60, change it to 30fps and the same 30 with the timeline project
settings, match everything else.
Steve Rhoden (Cow Leader)
Film Maker & VFX Artist.
Owner of Filmex Creative Media.
Samples of my Work and Company can be seen here:
https://www.facebook.com/FilmexCreativeMedia