kendo-vue
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Improve the current implementation of the Native Grid's virtualization with grouping
Scenario: Native Grid with Virtualization + Grouping.
The field for improvement: The expand/collapse is slow if we have a big number of items in the group which is expanded/collapsed
Example: https://codesandbox.io/s/smoosh-waterfall-7gebk1?file=/src/App.vue
Other issues related to the Native Grid's virtualization with grouping are discussed in ticket 1565647