The project grew, and the previous system could no longer cope. I decided to try https://fumbleboard.com/click-pay-done-why-convenience-is-the-new-currency-in-e-commerce/ because I had heard about high performance. Indeed, even with a large volume of transactions, everything works stably. Plus, it has a convenient architecture, you can easily expand, add payment methods, and change the logic. A real solution for growth.