image-dired-dired-disp-props

image-dired-dired-disp-props is a variable defined in `image-dired.el'.
Its value is

t

Documentation:
If non-nil, display properties for dired file when browsing.
Used by `image-dired-next-line-and-display',
`image-dired-previous-line-and-display' and `image-dired-mark-and-display-next'.
If the database file is large, this can slow down image browsing in
dired and you might want to turn it off.

You can customize this variable.