Would you recommend Plotly for real-time charts that update visually around 60fps? At work we wrote wrote ours in pure D3, but it was as pain in the ass
It's hard to do anything DOM based at 60FPS and a moderate number of points, if that is the main crux of your problem then I think you picked the correct route (custom D3). Still I find it's hard not to rinse peoples CPU in the browser when doing this.
Alternatively if you have nore than 10K points it's probably time to abandon DOM based methods and just redraw everything every frame directly (canvas / webgl).
Alternatively if you have nore than 10K points it's probably time to abandon DOM based methods and just redraw everything every frame directly (canvas / webgl).