Site speed is the ultimate commerce bridesmaid. While speed is often considered, it is far too rarely actioned, typically losing out to another -- and likely promising -- investment. But, it turns out that speed is one of the most thoughtful gifts a retailer can provide a shopper. And, those shoppers give back, deepening their journeys, and showering sites with conversion. Here's the value of a one second improvement in average page load time across a session.