I'm not sure if this thread should be here or in the Customizing the look of your shop section.

I added multiple products to my shop and the pictures next to the item when the products are listed are very blurry.
I can go to the product, and click on the image to see a larger one which looks great, but the smaller one is not good at all.

Is it possible to use a small image for the product listing and another larger image when the customer click on it to see a larger one?