Why Sub-50ms API Responses Matter for Checkout Flows — and What That Really Takes

https://fair-wiki.win/index.php/2,800%2B_Rewards_Catalog_from_Snipp:_What_Verified_Feedback_from_Implementation_Teams_Really_Reveals

Which API performance and integration questions actually decide whether a checkout converts or crashes? If you build or buy payment and checkout systems, you face a handful of questions that determine revenue, fraud risk, and engineering