I sent 557 photos to be smushed yesterday and retrieved

I sent 557 photos to be smushed yesterday and retrieved them once I got the notification email, but as they were being downloaded, the counter kept sticking until I refreshed wordpress. I had to refresh about 40 times to get all the images, but it seems as though the images have not been smushed. The counter said I had saved 0 space and the site is still loading just as slow. What can I do to fix? Thanks!