I'm worried that adding another app will slow down my store. How can I be sure it's lightweight?

How Do I Build a Sustainable CRO Process?

Most CRO programs start with energy and produce early wins, then stall when the obvious improvements are exhausted. A sustainable process systematizes learning so each test generates insight for the next, creating compounding improvement rather than one-time gains.

The Sustainable CRO Cycle

CRO Documentation Template

For each test, record:

• Hypothesis: What did you expect and why?
• Change: Exactly what was different in variant B?
• Duration: Start date, end date, total sessions per variant
• Result: Primary metric change (RPV), statistical confidence
• Conclusion: Why did it win/lose? What does this tell us about our customers?
• Next step: What test does this insight generate?

Preventing CRO Stagnation

When your obvious tests are done, new insights come from:

• Customer survey data (what questions are customers still asking before buying?)
• Support ticket analysis (what problems do first-time customers report?)
• Segment analysis (which traffic segment has the biggest CVR gap vs. your best performers?)
• Competitor research (what are they testing that you haven't tried?)
• New Shopify feature capabilities (does a new checkout feature enable a test you couldn't run before?)

A CRO program that documents and learns systematically will consistently outperform one that just "runs tests." The knowledge you build over 12 months of documented testing is a competitive advantage that compounds year over year.