Infinite Scrolling, Pagination Or “Load More” Buttons? Usability Findings In eCommerce

What is the best UX pattern to display products on an e-commerce website: pagination, a “Load more” button or infinite scrolling?
--
Pagination is still the most popular way to load new items on a website because it ships by default in almost every single e-commerce platform. However, our usability test sessions found “Load more” buttons combined with lazy-loading to be a superior implementation, resulting in a more seamless user experience. We found that infinite scrolling can be downright harmful to usability — in particular, for search results and on mobile. However, it’s not black and white, because the performance of each method varies according to the context of the page.
--
In fact, when benchmarking the top 50 US e-commerce websites, we found only 8% use the “Load more” approach. 
https://www.smashingmagazine.com/2016/03/pagination-infinite-scrolling-load-more-buttons/