Cleverlocal

Do you mean you want to delete all the products in your website?
Just go to the “Products” in your Dashboard and select all the products. See if it works.

Awesome links! Truly helpful in filtering products by specific category.

I agree with Lorro. If the original size of the images are small, chances are they’ll get pixeliated when expanded (or stretched) to fit the space.

These are my thoughts, you can use two sizes of high quality images (small and bigger versions). Use the smaller one on the catalog page (thumbnail) and the bigger one for the specific product page. I hope I make sense.

PS.
Are the original images sharp? or Have you tried editing/enhancing the images?

Can you share the link so we can check? And what’s the original size of the image?