The container element with the timing panel
The updated timing data (will be aggregated to match rendered structure)
OptionalrefinementRoot: TimingEntryOptionaldepthSortRoot: TimingEntryOptionaldepthSortUnavailable: booleantrue if update was successful, false if full re-render is needed
Update timing values in-place without re-rendering the DOM structure. This prevents losing expand/collapse state and click handlers during rapid updates.