Image woocommerce – blurry

Hello to everyone,
I installed woocommerce in my site: theme Admired

I have a problem with the images in my products page.
The images are blurry and doesn’t fix very well.
I looked on internet and I read the problem is with my theme.
I have tried to change style.css of my theme but the solutions, that i found (ex change some code), doesn’t exit in my theme.
I mean, when I read “change this code Ul.product or single prodcut or change widgt size..” i never found some codes like that.
Moreover I changed the image size on settings to woocommerce ( settings-catalog-image options) but nothing as well.

What i can do? any suggestion?

Follow the link
http://www.led-track-lighting.com/products/

thank you for any help and sorry for my english! 🙂

Vale