Collections will help the users to browse and filter products based on specific criteria, making it easier for them to find products of interest. You can display the collection of products better by customizing the option you found at Theme settings.

To access the Collection settings,

1. Open the Theme settings in your Shopify admin
2. Then open the tab Collection to see all settings

You can find following settings under Collection tab.

General	Description
Show secondary image on hover	Option to show additional thumbnail, if present.
Aspect ratio	Set the dimension of the images that displayed for products in collection
Show sale badge	It display the badge, if product have on going offers
Show price	It display the price amount
Show vendor	It display the vendor of the product
Show swatches	If swatches are setup, it will be displayed the swatch for products in collection.
Enable quickview	It will open the popup to display quick overview of the product