The Performance Wall: Why React Isn't a Data Buffer
If you’ve ever built a real-time application—a trading dashboard, a crypto ticker, or a live sensor monitor—you’ve likely hit the "React Performance Wall." You pipe your WebSocket messages directly into useState, and suddenly, your browser becomes a stuttering, unresponsive mess.
The culprit is simple but often misunderstood: React is a UI library, not a data buffer.
When you treat React state as the ultimate source of truth for every single byte of incoming data, you are essentially asking React to trigger a reconciliation cycle for every packet. If your backend is pushing data at 1,000Hz, you are trying to force 1,000 renders per second. Even the most optimized React app cannot handle that. You are blocking the main thread, tanking your frame rate, and leaving your users with a "lag machine."
The "Death by a Thousand Cuts" Problem
