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I remember getting the first Retina display MacBook Pro in 2012 and Mac OS Lion had some noticeable stuttering. I'm confident that Tahoe will get UI performance improvements but it doesn't give the new MacOS the best first impressions. lol.

I'm currently on a M1 MacBook Air running MacOS 15 and I will upgrade to Tahoe eventually when these UI performance kinks are smoothed out. ;)
 
I remember getting the first Retina display MacBook Pro in 2012 and Mac OS Lion had some noticeable stuttering. I'm confident that Tahoe will get UI performance improvements but it doesn't give the new MacOS the best first impressions. lol.

I'm currently on a M1 MacBook Air running MacOS 15 and I will upgrade to Tahoe eventually when these UI performance kinks are smoothed out. ;)

I had one of those too! Preordered a Retina 15" in 2012. The Mountain Lion beta was much better than the shipping release of Lion. ML rewrote a lot of the GPU calls to be more efficient.

I'm wondering if the same thing is not the case - the new UI in Tahoe seems to be doing a lot more JIT rendering of the UI and I wonder if the split targeting between supporting the Intel Mac GPU calls and the newer Apple Silicon GPUs is resulting in a subpar experience.

I will also say my M1 Pro is much smoother after a boot into Recovery and a repair of the disk with Disk Utility.
 
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8GB RAM and as I mentioned previously, Apple Intelligence, definitely noticeably degraded my MBP M1 512GB from running ‘like new’. Times that I disabled it and let it remove itself, it ran fine again. Particularly things like Parallels - though it was only things like that which suffered with AI turned on. Anyway, five years was my planned service life of my MBP, December 2020 til this summer - I cut it a bit short because I really, really wanted an iPad Pro
 
M1 Air with 16GB RAM. This is the third day after installation. Spotlight indexing did not hit the performance in the first day, which is good. But later I found that with my ordinary workflow, Tahoe often hit yellow memory pressure while Sequoia rarely reaches. And the animation when switching windows with Stage Manager enabled is unbearably slow and laggy.
 
M1 Air with 16GB RAM. I cannot find words for this. I will rollback to Sequoia this weekend. This doesnt even feel like a Beta, it's an Alpha. It is sluggish, animation stutter, batterylife is 1h shorter... For what? For transparent app icons? Is this the priority now? It feels like a cheap Android phone and not a Macbook anymore.
Besides all of this... rounded corners. I mean. Every screen is a rectangle. Why rounded corners... This is such a step back. I'm on OSX/ MacOS since 2010. And I have used every Windows. This is Vista. I cannot believe that this crap comes from Apple.
 
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Just an update to my previous post: I've just upgraded to Tahoe on my Mac Mini M1 8 Gb and the overall experience was a pleasant one - no issues encountered so far. Later today I'm going to upgrade my Macbook Air M1, too and will come back with a feedback. Just a brief note here: my Apple Intelligence has always been disabled.
 
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My MBA 16GB/256GB was updated using the full install package. It's been working fine so far, no issues, no crashes. Apple Intelligence is disabled. I like the new fresh look.
 
My MBP is M1 Max with 64GB memory 2T HD, and I am also suffering from performance issue now. The fans of my macbook started to spin and the surface is getting warmer. My fans haven't been ran for most of time during past years.

BTW, if you have bartender running, quit it, it might help for now. Might need to wait for an updated version of Bartender. Somehow, even quited bartender, I can still feel the lag time to time.
 
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