SfSunburstChart flickers when we use FastLineBitmapSeries in SfChart

Question

Our application has a sunburst chart and four line charts, with all charts being updated in real-time, 3-5 times per second. We had UI freeze issues, so after doing some research on Syncfusion forum and knowledge base we switched the line charts to use FastLineBitmapSeries, which seems to have resolved the UI freeze issues.

But now, the sunburst chart flickers. It did not flicker before using FastLineBitmapSeries in the SfChart line charts below the sunburst chart. The video linked below shows this behavior.

What suggestions do you have to stop the flicker in the sunburst chart? Thanks!

https://www.loom.com/share/130949e34cb945f580039527717156ec

Ryan Woodings · Answer

I have confirmed that the flicker is directly linked to the SfChart line charts updating. If I only update the chart data once per second the SfSunburstChart flicker reduces to once per second.

Eswaran Thirugnanasambandam · Answer

Hi Ryan Woodings, 
 
We have prepared a sample with both SunburstChart, FastLineBitmapSeries controls and checked the reported problem “SfSunburstChart flickers when we use FastLineBitmapSeries in SfChart” by updating the FastLineBitmapSeries’s ItemsSource dynamically. But we are unable to reproduce it from our side. Please check the tested sample from the below link. 
 
Sample Link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/SunburstChartDemo274574743   
 
If you still face the problem, can you revert by modifying the sample based on your scenario, this will help us to provide you with a better solution at the earliest. 
 
Regards, 
Eswaran.

Ryan Woodings · Answer

This still flickers, but I discovered that it only flickers in Debug and not in Release, so we are leaving it as-is for now.

Vignesh Ramesh · Answer

Hi Ryan Woodings,  

Thanks for your update. Please get back to us if you have any other concerns. 

Regards, 
Vignesh Ramesh.