Product image gallery and zoom issue

[trusttechsona]

Hi,
I would like help on setting the correct size product images. I have uploaded the product images in the size 620x800px as in the demo product. But the gallery images does not look good in the product page. Also the lens zoom effect also looks very bad.
See the below product for reference,
https://sole-house.com/stage/index.php/product/jordan-1-retro-high-white-university-blue/
I have attached the pictures for further clarification. Please assist me on this.
Thank you.

[Author]

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