Is it possible to slow down “memories” if watching without music

Greetings Seymourfromchelsea,

We noticed that you were reviewing the resource, "Use Memories in Photos on your iPhone, iPad, or iPod touch."

At the time, there is not an option that allows you to adjust the speed of a memory. However, Apple is always looking for ways on how to improve its products and services. You can follow this resource to submit your suggestion: Photos - Feedback

Thanks for posting in Apple Support Communities.

Have a wonderful day!