Slow macbook after updating to 10.13.2

The same thing happened to me after 10.13.2 update, but only with older Mac. The new one is fine.

iMac 27", Mid 2011, Core i7 3,4GHz, 8 GB RAM, SSD - super slow.

MacBook Pro Retina 13" Late 2013, Core i5 2,6 GHz, 8 GB RAM - ok.

10.13.3 update did not help.

Clean OS install did not help.

I found the answer as to why my MacBook was so slow after the 10.13.2 update:

https://www.newscientist.com/article/2157704-your-computer-may-run-30-per-cent-s lower-due-to-intel-chip-bug/

Now I want to know how do I get my MacBook speed back. Sounds like a law suite for sure!

Apple is not using Intels brute-force fixes for these bugs.

Apple's solutions are MUCH more targeted, and do not cause any measurable slowdowns.

If you want to know why your Mac is slow, post an etrecheck report.

I am having the same problem. MacBook Pro is now running on dinosaur time. Very, very slow. I’ve tried everything with no results.

the computer crashed and froze when loading update. Finally got it back on line, after tech support from Apple, but now unusable, so slow.

MacBook Pro (Retina, 13-inch, Mid 2014)

I have exactly the same problem and have installed High Sierra three times since its launch with exactly the same result - pathetic slowed down performance to the point of uselessness! The solution is to use Time Machine and restore back to Sierra where everything is instantly returned to normal! I have tried it with CleanmyMac 3 installed and uninstalled and it makes absolutely NO difference - High Sierra IS the problem!

Until Apple acknowledges this and comes up with the correct fix - stick to Sierra!!!

I downloaded intel cpu checker and low and behold on a Mac mini and a MacBook Pro. Despite all thermal sensors reading low temperatures except memory was a bit higher. The CPU was throttled below 1Gz. This led me to track down this article.

http://www.rdoxenham.com/?p=259

While the slowdown happened on several computers upgraded to 10.13.2 the cause on all three is somehow SMC getting out of sync. So the procedure to recover is to 😮to

1. Boot in reduced MHz

2. Put machine to sleep at reduced MHz

3. Wake up from sleep at reduced MHz

4. Shutdown

5. Left Shift-Ctrl-Alt Power Button for 10+ seconds

6. Reboot

CPU will throttle back up to GHz and stays that way.

Updating to 10.13.2 was no problem for my computer's performance (just certain capabilities when moving files within Finder)... but 10.13.3 devastated my 2015 13" Retina Macbook Pro.

I tried the FileVault status check, but mine was displayed as already off... I do not know if it is supposed to be on or not.

I have not experienced many problems with scrolling, but EVERYTHING else is 9-10x slower than before the update.

I will be typing, and the latency is 3-12 seconds (and recurs upon moving the typing location or backspacing, with 10-30 seconds problem-free without idleness). The loading cursor appears 6x more often than usual. Logging in went from 2 seconds to 2 minutes (though no problems booting/rebooting the computer). Opening an application by Apple takes 20 seconds longer, and opening other applications a minute & twenty seconds. Anything within System Preferences takes 8-11x longer than usual.

When I installed the update, it took 1.1 hours to boot up, and 20 minutes before it would even give an installation time estimate. I will admit that I grew quite impatient waiting on what appeared to be stalled progress, and did shut it down a few times, entering the [⌘ + s] screen in an attempt to add a new user as suggested in an earlier reply on this thread.

All this was after years of no problems.

I knew that Apple's software updates slow down older phones, but this on a Mac is ridiculous...

Yup, same problem here. I have Mac book pro laptop which ran very, very slow, as you described. Had to get help to install high sierra, as it crashed loading, then, after running slowly, it crashed on startup, so started in recovery mode - didn't work, started in safe mode - didn’t work.

I tried starting in verbose mode, crashed, stating that too many corpses were being created. Only way to solve it was to erase hard drive and reinstall high sierra.

It is still running slowly. I was told by an Apple technician, that High Sierra takes up a huge amount of memory. I guess Apple want us to buy new machines, same as tactics with IPhones.

Several of my Apple friends are now reverting to Windows. Surely Apple must realise that they are losing loyal customers with this strategy.

I have a new macbook pro 2017 with touch bar which has become very very slow after the update to hivh Sierra. earlier as soon as i used to open the lid off the laptop, the tough bar used to activate and ask for fingerprint, but now it comes after a significant lag. The word or any msoffice file opens after a lag. The same was experienced while opening pdf files . I spent a big amount for this pc, but really disappointed. How can I go back to Sierra?

I SOLVED IT!!!!! I feel so happy about this!!! Before performing this next part, back up your system, just in case.

What you do: On any permanent ID, open System Preferences and enter Users & Groups.

Unlock it by selecting the lock in the corner. Remove all groups from unused IDs.

Log off and refresh your computer. Before it comes back up, clear the P-RAM (hold cmd+opt+p+r and release after the noise); this last step may not be necessary, but it is what I did after removing the things under 'groups.'

If this does not do the trick, remove all unnecessary users as well.

NOTE: I also removed parental controls from every ID, and unchecked the box permitting other computers to control the parental controls remotely, before I performed this function. That, and removing unwanted apps. Never hurts to do that, but didn't help the case until I removed the groups.

That's all I've got, but I've tried everything else except resetting and bringing back everything minus the Libraries, which is what the Genius Bar had told me to do (clearly there was a better alternative).

If this fails, do what the Genii say. Sorry for the lengthiness and informalities. I am just so excited to share my solution and couldn't take the time to shorten it.

what could possibly be using up 16GB so fast?

You should run Activity Monitor and see where it is going, or run Etrecheck and post its report for readers to take a look at:

User tip: Using Etrecheck

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the same here with an MacBook Pro 15' 2014 (16 GB RAM , i7)

anyone here know how to back to the previous version ? or this is not possible ! i am new to the Mac

Yes, this update made older Macs slow down significantly. Initial symptom was the kernel task going to 800+ %.

i found that importing the same mysql dump takes about twice the time than yesterday. measuring the dump and import time shows that i now have only 45% of the former performance …