We discover that our Single Product images as set in Woocommerce> Setting > Products > Display are set to big. Single Product Image: 500 ×750px xHard Crop
I have tested plugin regenerate thumbnails but that does not work on the product images. Also test plugins Resize-image-after-upload. But that plugin does it for all images if bigger then a certain size. So not to use either. Try to get a plugin or functions.php code to re-size all existing product images to the right dimension. Without luck.
Question: Do you know a plugin or php code for functions.php that does resize all full product images?
Would be very helpful.