Faster Sites, Higher Sales: How Speed Impacts eCommerce Revenue

What if your website’s backend was secretly costing you conversions, search rankings, and customer satisfaction? In this episode of the eCom Ops Podcast, Norbert sits down with Andrew Chambers, EVP of Marketing at Harper, to uncover how milliseconds affect millions - and what top brands are doing to eliminate tech bottlenecks for good.

Andrew Chambers is a performance marketing expert with a deep background in eCommerce, SaaS, and startup growth. With two successful exits under his belt, he blends strategic brand storytelling with hard data and performance metrics to help high-traffic brands stay fast and scalable.

The No.1 eCom Operations hack

“We’ve seen customers that have come to us with LCPs in the neighborhood of like two and a half seconds... and we've seen those drop to 180 milliseconds.”

You Will Learn

Why sub-second performance is no longer optional for competitive eCommerce
What Harper’s fused-stack technology changes about dev speed and scale
How Andrew bridges technical innovation with brand storytelling
The link between system clarity and marketing ROI
Why backend complexity kills frontend revenue

Resources Mentioned

Core Web Vitals: LCP, CLS, INP
Customer Lifetime Value (LTV)
Google CrUX performance data
Bandit Running (case example)
Marginal marketing efficiency ratios
Shopify, Amazon
ChatGPT’s impact on SEO and discoverability

Show Notes

(00:01:22) Andrew's Journey in Marketing
(00:02:42) Typical Customers and Their Challenges
(00:04:25) Lessons from Previous Startups
(00:06:40) Outcome-Driven Marketing Strategies
(00:10:06) Tracking and Analyzing Marketing Efforts
(00:17:08) Customer Success Stories
(00:18:33) Final Thoughts and Advice