Hello, i try to find out which image optimization i should use for a wordpress site with over 5000 images. As it takes very long with the cache plugin, i think about using reSmush.it as they have very good recommendations (about 60-70% losless reduction in size). On the other side i have very good results and speed with your optimization from the cache plugin. The reSmush is using the libraries PNGQuant, JPEGOptim and OptiPNG. May i ask if you know which would be better? Or which image optimization libraries you are using? Thank you very much!