3 Reasons Why E-Commerce Sites Are Slowing Down, and What You Can Do About It

What site owners can do:

• Defer rendering "below the fold" page content.
• Ensure that interactive features (e.g., carousels) are optimized to load early and quickly.
• Defer loading and executing nonessential scripts, such as third-party analytics, social widgets and ads.
• Use AJAX for progressive enhancement.

3. Adoption of performance best practices has either plateaued or is on the decline. While the adoption of some fundamental performance best practices (e.g., use a CDN, enable keep-alives) remains widespread, the adoption rate has plateaued. For other best practices (e.g., compress text and images), adoption is still lagging.