Mac unresponsive after update to Tahoe 26.2

MacOS Unresponsive In Tahoe 26.2

I updated to Tahoe 26.2 last Sunday. Nothing but lag and slowness since. Native apps are extremely laggy. The one I can consistently reproduce is when I go to System Settings, then click Privacy and Security, it takes 40 seconds for the entire list to populate. Here is a screen recording I made which you have to watch to the end. I will click on Privacy and Security then nothing else. This is just one example, but several native apps are behaving this way. https://youtu.be/a3OLzm97hC8

On M1 Pro 2021 16". 250GB free of 1 TB.

Troubleshooting attempted and unsuccessful:

restarts
Safe Boot
disable all background apps
reduce transparency

MacBook Pro 16″

Posted on Jan 8, 2026 4:03 PM

Top-ranking reply

D.I. Johnson

Level 8

38,317 points

Posted on Jan 8, 2026 4:26 PM

We might be able to help figure out what’s going on with your Mac. It could be anything from an unintentional malware installation to a hardware failure. Some things are fairly easy to fix.

Please run an EtreCheck (free) evaluation of your Mac and post the generated report back here in a reply. EtreCheck is a safe and highly regarded utility from a trusted developer and respected ASC contributor. The report it generates will not include any personal info. It simply gathers specifics about hardware performance and installed software that might be in conflict with the OS.

Please navigate to EtreCheck.com to download the utility. Be sure to Allow Full Disk Access when you install the app. Once you’ve run the app and created your report please post it with your reply to this message.

Please note you must upload the full report. To see how, please click > How to use Add Text when posting… EtreCheck Report.

We’ll use your EtreCheck report to look for the things that may be causing your problem and advise how to correct them.

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16 replies

Feb 11, 2026 10:17 AM in response to D.I. Johnson

Do you work for Apple?

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Mac unresponsive after update to Tahoe 26.2