It seems to have done about half of my images but it still hangs every time i try to use it. In the end all my featured images stopped working! I had to deactivate all my plugins and re-activate them one by one before i could get them all showing again. It seems w3 total cache interacts badly with resmush plugin so it messes up your images. Lot of headscratching and worry and not worth it as it hasn’t improved my site speed by much anyway. Perhaps that is my fault and i should compress the images before they even go on my site, then resmush possibly COULD do a better job. Not sure.
