Reply To: product image blurry (but become clear on mouseover)

Hello,

Product images and thumbnails are controlled by WooCommerce itself and our theme doesn’t influence this. WooCommerce allows some of the settings for the size and cropping of the thumbnail images that you can find under Appearance >> WooCommerce >> Product Images.

Screenshot for Clarification: https://ibb.co/C0Fv8Sf

You can try changing the width of the main image and for the product thumbnails you can choose cropping as per your requirements.

Best Regards.