> For the complete documentation index, see [llms.txt](https://wiki.zephyr-sim.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.zephyr-sim.com/troubleshooting/mac-zoom-button-performance-issue.md).

# Mac "Zoom" Button Performance Issue

On Mac, when pressing the green "zoom" button in the application's toolbar, Mac will override the resolution settings to a much higher resolution than intended.

<figure><img src="/files/UdyAs08xEjypOFLc7ET2" alt="Mac application window buttons"><figcaption></figcaption></figure>

If you press the green "zoom" button to maximize the window and experience performance issues:

1. Navigate to the main menu and select Settings
2. Select the Resolution dropdown
3. Select a new Resolution from the dropdown
4. Reselect your desired Resolution from the dropdown

This will reset the resolution in the simulator.


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