I tried to render a couple hundred thousand datapoints with Chart.js and it froz...

etimberg · on July 4, 2020

There's a set of benchmarks with ~166k points. Chart.js v3 is listed as "Chart.js-next". https://leeoniya.github.io/uPlot/#performance

It should also be possible to render the chart in a WebWorker via the OffscreenCanvas API.

To be honest though, the data should be decimated before being sent to the chart. Some notes on it https://www.chartjs.org/docs/master/general/performance#data...