Hi @User9876,
Welcome to the Roku Community!
On Roku TV models that support action smoothing, the feature is available in the advanced picture settings submenu of the options menu.
- Press the Star button on your Roku TV remote during playback to open the Options menu.
- Scroll and select Advanced Picture Settings.
- Modify the Action Smoothing selection using the left and right buttons on the directional pad on your Roku TV remote. The directional pad is plus-shaped and is in the center of the remote.
Please note that your Roku TV does not support the feature if action smoothing is not listed in the advanced picture settings submenu.
Please let us know if you need clarification.
All the best,
Chel
Jecheal R.
Roku Community Moderator