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Improve the perfomance of lazyload grouping with paging

By default, when using LazyLoad with Grouping and Paging, the grid renders all group captions in a collapsed state, each showing the child record count. However, when a group is expanded, the child grid loads all child records, not just those on the current page. This behavior negatively impacts performance, as it unnecessarily processes and renders off-page child records, even though only the current page's data (including its child records) is required for display.


Sample: Syncfusion Blazor Playground: Write,Edit,Compile, Share Code


Replication steps


1.Run the sample. 

2.Group Product Name column

3.Try to expand first Group

4.Performance will be affected even though only 12 records including the Group header needs to be displayed.