That is correct, you cant just apply Twixtor on a piece of footage and
move a slider and expect to get great results all the time, it takes a
lot of fine tuning and understanding certain footage.
You can search online for some tutorials to fine tune its use.
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