Hi,
Thanks for your interest in Syncfusion Products.
You could set the radius of the bubble.
Refer to the below code snippet to set the radius of the bubble.
Code Snippet:
ChartBubbleType.SetMaxRadius(series1, 10);
Please refer to the attached Sample which can be downloaded from the below link.
http://files.syncfusion.com/support/Chart.WPF/7.2.0.37/F82684/main.htm Please let us know if you have further queries.
Regards,
Sowmya.N