Products in the slider

In the second block of my site there is a slider with products.
https://www.goosto.co.il/

The site was developed on wordpress + woocommerce.
Now there are 10 products in the slider. I want to add 30 products but there is a problem.
A large number of products delays the loading of the rest of the page, especially for mobile devices.

How to solve this problem? WordPress ...