After uploading the images (good quality), on K2, the image resolution gets distorted.
www.rajasthan-stone-exporter.com/final/index.php/our-products/landscaping/kerbs

The first product Granite Kerbs Steps has the image of 1000 x750 size.
On clicking the image for the item page, the image view is not good. The image dimensions in the page shows: 600px × 450px (scaled to 1,140px × 855px).
How to correct it to show better image.

The same thing is uploaded using SP Portfolio.
www.rajasthan-stone-exporter.com/final/index.php/kerbs-sp

Their is too much difference.