Bulk Smush

Hello,
I ran a bulk smush since we have a lot of woocommerce products with large featured images and gallery images (900x900px). But only 367/1486 got smushed. I am prompted to smush 1119 more images but nothing happens when I click Bulk Smush or try to smush further.

I need to smush further to impove site speed. Please help.

Thanks,
Daniel