The brutal reality: your SaaS database will slow down by 4x (here's the data) Your shiny new SaaS starts with lightning-fast 45ms query times. Eighteen months later? You're looking at 2-second timeouts and angry customers. This isn't a maybe, it's a mathematical certainty. I tracked five production SaaS platforms over 18 months to quantify exactly how bad database performance degradation gets. The results will make you rethink your scaling strategy. The experiment setup We monitored five B2B SaaS platforms with identical infrastructure: PostgreSQL 14.x on dedicated servers 16 CPU cores, 64GB RAM, NVMe storage 50-200 concurrent users during peak Standard multi-tenant SaaS schemas -- Typical configuration shared_buffers = 16 GB effective_cache_size = 48 GB max_connections = 100 Enter fullscreen mode Exit fullscreen mode Measurement period: January 2023 to June 2024, capturing metrics every 15 minutes during business hours.…