The blessing and the curse of the cloud gallery is that it’s actually quite easy. It’s really easy to take a picture and automatically store it in a gallery. This allows you to keep on snapping away and revisit the gallery whenever you have time.
That might be a fine starting point. And when you find a huge number of duplicate files, it’s a glaring red flag.
The more you tidy up your cloud gallery, the faster it works. Deleting dupes from your gallery or getting rid of them not only saves you space on your hard drive but it also runs your machine very well.