Every point of friction in a user journey - an extra form field, a confusing navigation label, a CTA that's hard to find on mobile, or a page that loads in four seconds instead of two - causes a percentage of visitors to abandon before converting. Good UX eliminates these frictions systematically: simplifying navigation, making calls-to-action unambiguous, reducing checkout steps, and presenting information in the order users need it. UX improvements produce 20–100% conversion rate increases without changing marketing spend. For Indian e-commerce businesses, checkout UX improvements - adding UPI prominence, reducing fields - can lift conversion rates by 30–60%. This is typically more impactful per rupee than increasing performance marketing ad spend alone.