Hi Fabrizio,
Unfortunately, this has nothing to do with our plugin.
Please adjust the image settings from here.
Once you have adjusted the settings, please regenerate the thumbnails.
You can use this plugin to regenerate the thumbnails.
Let me know if this helps.
Thank You
Preview Image
Fabrizio Pepe
Hi, I don’t understand why the preview image can be seen not at resolution, while if I enter the product I see it correctly at resolution. Thanks