Hi W4A,
Greetings from Syncfusion. When comparing AreaSeries and StepAreaSeries both have almost the same rendering
behavior, so there is no difference in the performance. Due to series
animation, it will look like a performance decreased, so we suggest you set
the animationDuration property to 0 to disable the series
animation it will help you to increase the performance of the series
rendering.
If you have any further queries, please get
back to us.
Regards,
Yuvaraj.