I've run Hummingbird and done all the optimizations and everything seems to have worked but the image compressing. I installed the WP Smush plugin and it said found 39 images to compress and it went through and did them all but the performance test still says that it's an 8 on images out of 100. When I click on Improve it takes me to Smush and it has green and says it's all done. Even if I re-check for images. Any ideas why this isn't working?