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

https://www.bright-bookmarks.win/single-use-codes-vs-usage-limits-preventing-systemic-abuse-early-not-after-the-fact

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