added higher skip values if we have lists so we can reach values faster
added higher skip values if we have lists so we can reach values faster

additional for https://github.com/gphoto/libgphoto2/pull/527

gphoto/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2,gphoto/libgphoto2