Dev Tools · 1h ago
Virtualization Keeps Live Chat Smooth at 3,700+ Messages
A developer built a live-shopping UI to test chat feed performance under high message volume. A naive render dropped frames to 25fps with 3,333 DOM nodes. Virtualizing the list with react-window maintained 60fps with only 14 DOM nodes.
Meridian48 take
The piece is a solid, practical case study in frontend optimization, but the technique is well-known; the value is in the clear benchmarking.
react-windowperformance-optimization