Hi @TonyT26,
Welcome and thank you for sharing your innovative suggestion to enhance the Roku streaming experience!
Currently, the feature to customize the picture speed and transition for the Roku photo stream is not available. As we eagerly anticipate the upcoming feature on our Roku Devices, you can continue to take advantage of the latest features offered by Roku Photo streams.
For more detailed information, visit this support FAQ: How to use Photo Streams on your Roku® streaming device.
We want to ensure that our users have the best streaming experience, so we'll forward your feedback to our team!
Best regards,
Emman
Emmanuel-D.
Roku Community Moderator