New plot is very expensive for frequent data changes.

[Bob-Thomas]

I would advise using Plotly.react instead of newPlot and relayout.
This will simplify your code and instead of rebuilding a whole new plot it just redraws the styling and traces.
plotly.react docs
I actually wrote a tiny implementation of your bigger idea of embedding vuejs in plotly.js

https://medium.com/@bobthomas295/vuejs-and-plotly-js-reactive-charts-da9b3b59f2dc

Here you can see how easy it is to use the Plotly.react and the speed you get with it.

[mokkabonna]

Fixed in 14b8c07

[Bob-Thomas]

Sweet

[manthey]

Should the window autoresize listener use react rather than newPlot?

[mokkabonna]

Fixed