The Database Bottleneck

“It was fast… until users showed up.” That’s what I told a friend when we were debugging his system. Everything looked good at the start. Few users, Fast responses, Clean architecture. Then traffic increased. And suddenly… Everything slowed down. Not crashed. Just… slower. The problem Every request depended on the database. Each time a user did anything: • fetch data • update records • check balances The system went straight to the database. At small scale? No issue. At scale? Every request star