Why Sub-50ms API Responses Matter for Checkout — and How to Separate Real Gains from Vendor Hype

https://signalscv.com/2025/12/top-7-best-coupon-management-software-rankings-for-2026/

If you're responsible for checkout performance, you have two jobs: remove friction that costs conversions, and avoid paying for small, brittle optimizations sold as miracles. Sub-50ms API responses sound sexy in analyst reports and vendor slides