Changing product rendering on category page

After installing the plugin, it is changing the way the products are shown on a category page.

This is how it should normally appear, im using the emallshop theme: https://www.sms.mu/product-category/horse/horse-equipment/

This is how it is currently appearing after activating the discount plugin using the emallshop theme: https://emallshop.presslayouts.com/product-category/clothing/

If I desactivate the discount plugin, it’s shown properly, so the cause is the discount plugin.

Is there a way to prevent modifying the way products are listed on the product category page?