The eCom Ops Podcast Faster Sites, Higher Sales: How Speed Impacts eCommerce Revenue with Andrew Chambers
Jul 18, 2025
Andrew Chambers, EVP of Marketing at Harper and performance marketing veteran with two startup exits, talks about how site speed shapes e-commerce success. He describes Harper’s low-latency fused-stack, dramatic LCP improvements, and why sub-second performance matters for SEO, conversions, and checkout reliability. Short, technical, and business-focused insights on turning milliseconds into measurable revenue gains.
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Measure LTV Before Judging ROAS
- Calculate near-term and 6–12 month LTV before judging channel ROAS to inform spend.
- Use marginal marketing efficiency to decide where the next dollar should go and scale confidently.
Fail Fast And Measure Clearly
- Fail fast: test, measure, and stop what clearly underperforms instead of doubling down.
- Use simple analytics tools (Looker Studio, Power BI) to aggregate data and drive decisions.
Millisecond Gains Scale To Millions
- Page speed improvements produce measurable gains in Core Web Vitals and revenue.
- Andrew Chambers links LCP drops (e.g., 2.5s → 180ms) to clear business upside using Amazon's 100ms = 1% sales rule.