Learning: Blender modal operators run frequently (e.g. every 0.3s). Calling area.tag_redraw() unconditionally in the loop forces constant viewport rendering, even when no state has changed, causing unnecessary CPU/GPU load.
Action: Only call tag_redraw() when the operator actually processes data or updates the UI state (e.g., via a refresh_needed flag).
Learning: Instantiating google.genai.Client is not cheap (measured ~100ms per call). When making multiple sequential or parallel API calls, re-creating the client inside the loop adds significant cumulative overhead (~500ms for 5 calls).
Action: Initialize API clients once at the start of the workflow (e.g. in the operator or main function) and pass the instance to helper functions via dependency injection.