Me too, same issue. My MBP was on fire... but fire-hot... fans blowing all the time...
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I HAD to Switch Back to MacOS Sequoia 15.7
My Mac is now like 1000% faster... and "BACK TO NORMAL" !!!
For Tahoe, I tried everything,
even a full format and fresh install of MacOS Tahoe 26.01
with NOTHING else in the SSD !
This MBP is an intel i9 2.4ghz with 64GB RAM and 4TB SSD...
So it is NOT a slow machine... or with limited RAM or Drive...
The Problem is obviously in Tahoe itself...
It's rather better to be thinking that for some obscure reason the OS was rushed out and it still needs a ton of bugs and performance fixes...
if this is the new MacOS going forward, it is simply a disaster.
After you re-install a fresh sequoia, You have no idea...
Literally You have NO IDEA... how smooth and fast it is...
How good it is compared to Tahoe...
After 2 weeks using it, You start forgetting how was the same Mac Running on Sequoia.
I'm surprised that in the major websites all the reviewers are praising MacOS Tahoe, so much...
Unless they are all "paid-out" by the Big Apple, to deliver fake reviews...
there is no way Tahoe can be praised as it is...
I also have a Mac mini M4 and that one too the slow-down is heavy.
I had to reformat all the machines from an external USB and go back to a full fresh sequoia.
And then restoring my data.
As said above, tried Tahoe, with FULL fresh install of the OS on both the intel and M4 machines.
So no other apps, then what comes and ships with Tahoe.
Browsing with safari... SLOW
Right clicking on the dock on Safari to see the contextual menu... SLOW...
Like ... seconds... between the click and opening the menu...
On sequoia everything is INSTANT... immediate...
There are issues... too many issues.
As someone said in another post...
It's not a specific issue... it's the aggregate of bugs, issues, and performance drops...
Like death by a thousand cuts.
My advice to anyone... DO NOT UPDATE or "UPGRADE" to Tahoe.
It is NOT an Upgrade... not right now...
Going back to Sequoia IS an upgrade from Tahoe.
