The time elapsed between pictures is greater than the time I selected for the slide show.
When pictures are very big, weighting 1 or more megabytes, the photo frame needs more time to process them and might take longer than the selected slide show time. Lighter pictures will be shown “on time”.
Sometimes it is shown a “Format not supported !” message on the screen.
This message appears when the picture to be shown has a problem like the one described in point 1, or it is not an image file but has a JPG extension. Make sure the file is a real JPG
picture, and that it does not have excessive metadata.