Describe the bug
When having a movable Native Window component with a Grid inside it, the more cells(rows and columns) the Grid has, the slower the Window's rendering is. This effect is not replicable in the Kendo UI for jQuery scenario.

To Reproduce

1. Open this StackBlitz example that has a Native Window + Grid implementation
2. Open this Dojo example that has the same scenario as in point one but using the Kendo UI for jQuery suite
3. Start to move the Window components in both examples
4. Compare the way the Window is rerendered

Expected behavior
The rerendering of the Kendo UI for Vue Window should be smooth as it is in the Kendo UI for jQuery Window demo