ECOMMERCE

MARKETING Podcast

Transforming E-commerce with Performance Optimization – with Sarah Gallagher

Sarah Gallagher leads the team at Gamma Waves and has spent over 15 years at the forefront of digital and ecommerce strategy. She’s not just keeping up with ecommerce trends—she’s setting them. Known for helping mid-market brands evolve into ecommerce powerhouses, Sarah combines technical expertise with a passion for fostering collaboration, excellence, and inclusivity. Earlier in her career, she even launched the first ecommerce site for The North Face.

In this episode, Sarah shares why performance optimization—specifically speed across the entire customer journey—is crucial for ecommerce success. She breaks down actionable strategies for supercharging marketing, testing, targeting, and conversion rates by simply making ecommerce experiences faster and friction-free. Through real-world examples and tactical advice, Sarah shows how brands can dramatically improve revenue without needing massive redesigns.

Key Topics Discussed

  • Why speed across the customer journey is critical for ecommerce success today
  • How milliseconds of load time directly translate to millions in revenue
  • Common (and overlooked) bottlenecks like oversized images and unused apps
  • Real-world case study: increasing conversion rates by 37% with backend performance fixes
  • The importance of regular performance audits using tools like Google PageSpeed Insights and GTmetrix
  • How performance improvements amplify the results of all marketing channels
  • The evolving role of AI and technology in ecommerce site optimization
  • Best practices for balancing marketplace selling (TikTok Shop, Instagram Shop) with owning the customer journey

Time Stamps

[00:02] – Introduction to Sarah Gallagher and her ecommerce journey (including launching North Face’s first eCommerce site)
[02:30] – What drew Sarah to ecommerce and why the pace of change keeps her passionate
[04:31] – Biggest changes in ecommerce from early days to now
[08:17] – Why speed matters more than ever across the customer journey
[10:46] – Tangible tips to increase site speed, even on platforms like Shopify
[14:53] – How load time affects campaign performance and customer experience
[16:55] – Case Study: Boosting conversion rates and revenue by fixing performance bottlenecks
[19:01] – Why foundational performance fixes should come before UX redesigns
[20:41] – The role of TikTok Shop, Instagram Shop, and marketplace selling in today’s ecommerce
[22:26] – Where ecommerce performance optimization is heading in the future
[25:00] – Tools and frameworks to start monitoring and improving site speed
[26:38] – Fun Fact: Sarah hiked to the bottom of the Grand Canyon and back!
[28:16] – Where to connect with Sarah and learn more about Gamma Waves

Guest Contact Information

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