# How does Zone Visibility perform? | New in Tableau 2022.3

> This is content from just-tim, the data-and-analytics channel by Tim Ngwena (formerly 'Tableau Tim'). Tim has 12+ years of hands-on BI experience and covers Tableau most of all, plus Power BI, Looker, Hex, SQL and data modelling, the analytics industry, and the craft of doing the job — always tool-agnostic and honest about the trade-offs.

- **Author:** Tim Ngwena (just-tim, https://just-tim.com/about)
- **Published:** 2022-11-14
- **Format:** Video · 10 min watch · transcript available
- **Topics:** Data visualisation, Productivity
- **Tools:** Tableau (dashboards, parameters, performance)
- **Canonical:** https://just-tim.com/posts/how-does-zone-visibility-perform-new-in-tableau-2022-3
- **Watch:** https://www.youtube.com/watch?v=88ikBG0gozc

I answer a viewer's question about what happens to performance when you hide a section using zone visibility in Tableau 2022.3. I use performance recording to capture what Tableau does as I switch between zones, then dig through the resulting workbook to interpret the events.

## Key takeaways

- Start performance recording before opening any workbook, via Help > Settings and Performance > Start Performance Recording, so the capture runs in the background from the very beginning
- Leave deliberate gaps between actions when recording so each activity shows clearly on the resulting timeline
- The performance recording output gives both an overview dashboard and a detailed event timeline you can rebuild by dropping fields like start index, event and worksheet onto the view
- Tableau appears to run all queries and compute layouts for hidden zones up front, only rendering the visible zone when you switch to it, so heavy queries behind a hidden zone still load at the start
- Click the green query items in the recording to see the actual SQL sent to the database for debugging

## Chapters

- 0:23 Setting up performance recording
- 1:00 Recording the zone switches
- 2:21 Opening the performance recording workbook
- 3:45 Rebuilding the event timeline
- 5:46 Interpreting the events and conclusion
- 8:54 Bloopers and rejected takes

Watch the full video, read the transcript and use chapter deep-links on the page: https://just-tim.com/posts/how-does-zone-visibility-perform-new-in-tableau-2022-3

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just-tim — Data and analytics, with a point of view. · https://www.youtube.com/channel/UC7HYxRWmaNlJux-X7rNLZyw · https://twitter.com/TableauTim · https://www.linkedin.com/in/timngwena