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Plotly’s scattergl renderer lets you plot massive point clouds with minimal lag. This guide walks through prerequisites, setup, performance checks, and fallback strategies for older browsers or low‑end GPUs.
Plotly’s default scatter uses SVG DOM elements and slows down with tens of thousands of points. Switching to scattergl moves rendering to WebGL for interactive exploration of hundreds of thousands of points, with clear trade-offs in features and payload.
Plotly's default SVG rendering chokes on large scatter plots. Switching to scattergl (WebGL) is a one-line change — here's when it's worth it, what you give up, and how to verify on your own machine.
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