Picture quality

[NASASF]

Hi

I am bit puzzled about reduced image quality

Please check pictures for product 1, 2 and 3 at http://jtlit.co.uk/italian-food.php

After publishing:
1. Parmesan cheese Original PNG 1167x982 res is kept as is
2. Dark Chocolate spread Original JPG 750x830 is reduced to 151x167
3. Dark Chocolate spread Original PNG 750x830 is reduced to 151x167

Reduction significantly reduced pic. quality on the site.

What have I done wrong?
Is there any remedy?

[NASASF]

I changed publishing option to highest quality JPG - looks like working

[Pablo]

The software will publish your images "AS IS" unless you apply filters or effects to the image.
In that case, you can set the image quality in Tools->Options->Publish->Compression