How we engineered a zero-latency analytics dashboard that handles 50,000+ real-time events per second without dropping a frame.
01The brief
Aether needed live analytics across thousands of instruments, rendered in a browser, with no perceptible lag — on ordinary laptops, not trading rigs.
02A custom state layer
Instead of pushing every tick through React, we buffered events outside the render tree and committed them to the screen in frame-aligned batches.
03Rendering on the GPU
Charts moved to WebGL, so the main thread stays free for interaction. The result is a dashboard that stays fluid even at peak market hours.
“Performance is a design decision. If it stutters, it doesn’t matter how good it looks.”
- React
- WebSockets
- Performance
