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Current Behavior:
The diagram currently supports virtualization for elements such as nodes, connectors, and groups rendered directly on the diagram canvas. However, when these elements are rendered within a swimlane, virtualization is not supported.
Proposed Enhancement:
Enable virtualization support for swimlanes and their contained diagram elements, including nodes, connectors, and groups. This enhancement will optimize performance by efficiently rendering only the visible portions of swimlanes and their contents, ensuring smooth interaction with large diagrams.