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Level 1

30 points

Significant System & Mouse lag after high sierra install

I just upgraded to High Sierra this evening, and now my system is pretty much useless. MacBook Pro 15: late 2016. The most obvious problem is the mouse, both the trackpad and the magic mouse are very slow responding. I have to try to judge where the mouse will end up, because it just sits there and then jumps to the next screen position. All clicks are delayed. I have rebooted several times, same thing each time. This is horrible, I no longer have a usable Mac. Scrolling and other mouse gestures also affected.

I cannot believe that I am the only one who has this problem!

MacBook Pro (15-inch, Late 2016), macOS High Sierra (10.13)

Posted on Oct 4, 2017 12:07 AM

Best reply

getangar

Level 5

4,548 points

Posted on Oct 4, 2017 12:15 AM

Do you have any peripherals attached to your Mac? In that case, remove everything and try with a new start.

If the issue is still there, try to reboot in safe mode Use safe mode to isolate issues with your Mac - Apple Support and see the behaviour. In case still issue, then reset the NVRAM how described in this article: How to reset NVRAM on your Mac - Apple Support and if still there, well give a try with this tool: https://etrecheck.com/ and post here the result.

View in context

32 replies

Jan 13, 2018 9:12 AM in response to Lexiepex

Yep - will remember to give it a regular dust in future.

My TM backup is now back to normal and took only 20/25 minutes as it used to. It's a shame that Apple can't issue more information about possible problems following an update - just to let people know what to expect. Maybe they think this is just inviting criticism and will discourage people from carrying out an update... or maybe they just didn't test it with 17K + photos and didn't know the impact it would have. Just as well we have these forums 😉

Lexiepex

Level 6

14,102 points

Oct 4, 2017 12:18 AM in response to RedpointRik

Open Bluetooth and delete the existing pairing with the mouse.

Restart the mac (to empty some caches).

Connect the magic mouse and pair it again.

RedpointRik Author

Level 1

30 points

Oct 4, 2017 11:40 AM in response to getangar

Reset the NVRAM and plugged the USB-C hub back in, and for now, all appears to be working fine. Thanks for your help!

getangar

Level 5

4,548 points

Oct 4, 2017 11:42 AM in response to RedpointRik

You’re welcome :)

Oct 9, 2017 1:27 AM in response to getangar

I’ve had this same issue since downloading High Sierra yesterday. Once I unplugged my 2nd monitor from the usb-C the problem was solved.

Raima328

Level 1

4 points

Dec 25, 2017 4:46 PM in response to getangar

Why is this a problem in High Sierra when it was NEVER a problem with previous OS X? Keeping USB devices disconnected is not the solution.

Lexiepex

Level 6

14,102 points

Jan 1, 2018 8:47 AM in response to carolgolf

If you can not directly type in your account password, hit one of the 4 arrow keys on your keyboard, then you should be able to type in your password.

Ginkan

Level 1

4 points

Jan 5, 2018 5:40 AM in response to CLtech

i have the same issue with my mbp2017 and mm2, however im using the original apple usb type c to hdmi, still have the laggy prob

Raima328

Level 1

4 points

Jan 6, 2018 2:10 AM in response to FredGFromCA

I just rolled back to El Capitan. I don’t see the point in upgrading to an OS that runs slower and breaks things. The instability and performance degradation outweighs the features in high Sierra.

Lexiepex

Level 6

14,102 points

Jan 13, 2018 6:11 AM in response to carolgolf

Good work !

Cleaning of course is always good, I do it every year (and take out the fan alltogether and clean the filter after it).

Jan 15, 2018 8:31 AM in response to Lexiepex

Fan noise came back yesterday and I can't get rid of it this time 😢 Will find or start a new topic on this if I can.

Lexiepex

Level 6

14,102 points

Jan 16, 2018 2:56 AM in response to carolgolf

post a link to the thread here

Feb 3, 2018 6:59 PM in response to RedpointRik

You are not the only one. So annoying.

Ginkan

Level 1

4 points

Feb 6, 2018 8:57 PM in response to RedpointRik

I have the same problem with my Magic Mouse 2/ Magic Trackpad 2. In my case, turn off the wifi can fix the problem. This is incense that using a MacBook Pro without wifi.

Lexiepex

Level 6

14,102 points

Feb 7, 2018 2:44 AM in response to Ginkan

Try this:

SystemPreferences->Network (unlock)->Advanced->TCP/IP tab:

set "Configure IPv6" to: Local-Link only, click OK

Click Apply.

Close the Network page.

Significant System & Mouse lag after high sierra install