This screencast gives an overview of how to use Twixtor within Final Cut Pro, including how to apply Twixtor, how to speed up and slow down using Twixtor, and special considerations needed.

Timestamps:

00:24 Speeding Up

03:14 Slowing Down

**You can find additional and/or newer tutorials for Twixtor in Final Cut Pro here: https://help.revisionfx.com/album/28/