I am looking for a way that the plugin uses the smallest version of an image available. Right now the plugin uses the “original” size even though multiple smaller versions of the image exist (also a thumbnail version).
How can I manage to do that? Is there a way without using “caching” because I don’t want to create even more images…
If these are featured images, then you can change their source here: https://i.imgur.com/RITc2il.png
If the images are mostly fetched from the text content, or custom fields etc.., then there is a built-in image caching, that you can turn on here: https://i.imgur.com/aRFL9gP.png
I only recommend the image cache, if the images are not the featured ones, otherwise changing the image size is much faster.