Lee.org

Ugh, I installed the new “Tahoe” update to MacOS a few days ago and I instantly noticed that my computer, a Macbook Pro 16″ 2019 ith M2 Intel Silicon, was sluggish and the CPU fan was running more than previously. I especially noticed that scrolling started in Chrome had becoming insane-makingly jittery. I found some tips and THIS one seems to work!

(via)

To disable the problematic feature for all apps thus fixing the issue, run the following command in the Terminal:

defaults write -g NSAutoFillHeuristicControllerEnabled -bool false

And restart all apps/system. Note this also disables macOS’s native autofill feature.

That worked to fix my computer! It’s now back to being zippy-fast and not overheating for no reason.

The same post also says this, though that doesn’t seem to be to be run for me…

To fix the perf issues for Electron apps (and presumably Chrome/Chromium browsers?), also run:

launchctl setenv CHROME_HEADLESS 1

Note this need to be re-run every time you reboots. Thanks for u/PatrikCR for the heads up!

This tip didn’t help:

If I turn off automatic graphics switching in power it works smooth. Ig intel GPU cant handle macOS 26 :/