Hi judysings
Thanks for your answer.
Yes, i am talking about the slideshow option in the photo application, on my Ipad.
I don't use at all the icloud photo librairy.
I have many photos in the camera roll of the ipad, that i tranfered from my pc via photosync.
These photos are organized in albums in the photo application.
I have the same problem for all the albums.
When I watch an album, the slideshow stops many times (during about 30 or 40 seconds), than it operates again, and it stops again...
When it stops, there is an icon like a clock in the right bottom corner (a white circle with a little triangle inside).
In total, i have many photos (more than 50 000), but each album is not very big (some albums have only 50 photos but the problem is the same for them too).