Yes, I think it's worth considering if there are any image sizes that can be removed without sacrificing important coverage. Probably can comment out those that we deem not very important as you did for the other tests that simply take too long to run. How about the "odd dimensions" images? I would think it will be unlikely to have those kind of images on a phone. I could be completely wrong about that, underestimating what all people put on their phones, but it seems to me those would be candidates to comment out. What do you think?