Severe lag and freezing after macOS Tahoe update on MacBook Pro M1

Thing is, the user should;t have to do anything. This is an apple upgrade right from the horse's moth. It's not like well downloaded some pirate software that made mess of everything. Yesterday my computer went completely bonkers. the messages and reminders kept entering and exiting the screen. I was watching you tube and suddenly it stared to just randomly change the video I was watching. My kiss coin;t interact with anything. I couldn't force quit because the mouse no longer interacted with the screen. It was Iike the computer was just running like a freight train with no governor on it and no engineer in the seat .It was doing anything it wanted to do and I was just a passenger. Things were getting worse and worse so I finally held the start button down and shut the machine off. the scary part was it wouldn't start right away. I pushed the start button multiple items and it did nothing so I just had to sit here wondering if my computer was now a brick. On its own it restarted a little while afterwards and when it did I got that little screen in the center that said my computer had shut down because of problem blah blah blah indicating it was kernel crash which is very dangerous.

the new OS is really ugly too. I wasn't nagging for a bunch of rounded off windows and icons. It looks really ugly and even makes things kind of hard to look at and make sense of.

Same here. I need to move windows to another screen to make them respond again.

I have similar issue. Not the same as nico, but similar. When mac is under load, playing music or videos, the audio is crackling and breaking. Very annoying. Hope there will be a bugfix update soon...

FaceTime is laggy and iMessage spinning wheel is driving me to distraction. I'm not even playing music or videos. I'm in Word, have photos running, notes and apple mail. So tired of all the shiny sparky shenanigans. What's happening with my Apples?

Absolutely agree. Music app is glitching. This replacement of the playback bar from the top to the bottom of the app window is absolutely illogical (always difficult to fast forward the track and it is always gets mixed with the background. Moreover, there are hundreds of previously non-existent glitches in Music app itself (the first is that it now responds slow on MacBook Pro M3.

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This terrible experience appears to be shared by some, but not most users.

This begs the question, what is different?

For one thing, only very few Intel Macs are now supported, and those may be the most affected; macOS is bound to be geared more and more for Apple Silicon, and will all but assuredly drop Intel support completely very soon.

I sympathize with those afflicted, but more than likely it is a combination of older, slower hardware (intel macs can no longer be though of as "fast"), and probably old software, like system extensions from years back, that break with a new OS.

FWIW, there are certainly bugs, and that is par for the course for .0 version. Many people skip a new OS until version .2 or .3 because of it. But I do not concur with the description of Tahoe as "the worst", nor is it slow, on either of the macs that I have tried, or of many people which I know of.

im DONE with Mail. Apple made it really easy for me. I was already using a third party app for other email accounts. I started enjoying that experience more than Apple's Mail app. This just sealed the deal.

I've noticed the same problems after updating to MacOS26. My MacBook Pro M3 Pro became laggy when opening several apps, and sometimes everything just freezes, forcing me to restart the computer. When this happened only Mail, Messages and WhatsApp were open. Are there any solutions to this?

That's a quick fix but the auto fill and password key is not working now. I should have reviewed the bugs before downloading the Tahoe OS update. These challenges negatively affect productivity and business use. Apple developers should warn users of the potential challenges before making it available. Points to Apple products being user-centric and not great for corporate environments.

This is a huge mess… everything I do today beachballs… want to copy a line of text.. that will be a 2 second beach ball… want to reply to an email, 15 seconds of beach ball… open a file… whole system freezes for 10 seconds, beach ball, then maybe the file will open.

Mac Studio - M4 Max, 128 GB Ram, 2 TB HD

I have been seeing the beach ball more in the last couple days since upgrading.

Most apps are OK performance-wise (have not pushed too many too hard just yet) , but Maps is extremely slow to load; much slower than previously on Sonoma and my iPhone for that matter:

Maps Very Slow (macOS Tahoe) - Apple Community

Fingers crossed these performance issues are fixed in next Tahoe minor update.

Luis, you are probably correct about Intel Macs. (I'm using the last high-end Intel iMac from 2020.) However, not all flaws with Tahoe are performance related. For example, why does the TV app no longer show names for episodes? I've been a Mac owner since 1984 -- when the 128K model came out -- and have seen issues in many upgrades. However, in my opinion, Tahoe is the worst upgrade I have ever experienced. This obsession with annual updates is ridiculous. And Apple needs to quit putting efforts into the Vision POS and making sure normal macOS, iOS, and iPadOS users get a proper user experience. I hate the thought of reverting to Sequoia -- and I have never before had to go back to a previous system -- but I am seriously thinking about it. If I weren't so deeply embedded in the Apple ecosystem, I would even consider a Windows computer.

After upgrading to Tahoe both my mac laptops began loading webpages so slowly, 15 seconds, 30 seconds, 45 seconds. Safari or Chrome, it doesn't matter. I have an m3 pro with 36 gb of memory. My internet connection is fiber. I'm used to pages loading in seconds. I hope there's a quick fix

I'm glad you started the thread! Having followed some of the guidance I've found here, basically only FaceTime is causing an issue. At the very worst there are lags which culminate in my USB-C drives and hub being disconnected. Logitech webcam goes offline. The drives come back but the webcam doesn't. This is on an M2 Mac mini.