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Big Sur lagging

Hallo,

I update my macbook pro 13''to big sur and after boot fan turns to maximum and is lagging instantly . i uninstall firefox adblock , i reintall big sur with assistance of apple support and is still lagging . i am dissapointed and do not know how to solve it , my HW was chcecked and repaired so is SW problem . Can someone help me ?

thank you many times



[Re-Titled by Moderator]

MacBook Pro 13″, macOS 11.0

Posted on Nov 16, 2020 9:07 AM

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Question marked as Best reply

Posted on Nov 16, 2020 10:06 AM

stano97 wrote:

Hallo,
I update my macbook pro 13''to big sur and after boot fan turns to maximum and is lagging instantly . i uninstall firefox adblock , i reintall big sur with assistance of apple support and is still lagging . i am dissapointed and do not know how to solve it , my HW was chcecked and repaired so is SW problem . Can someone help me ?
thank you many times



Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

This will tell you if it a universal issue or isolated to your user/admin account. 

4 replies
Question marked as Best reply

Nov 16, 2020 10:06 AM in response to stano97

stano97 wrote:

Hallo,
I update my macbook pro 13''to big sur and after boot fan turns to maximum and is lagging instantly . i uninstall firefox adblock , i reintall big sur with assistance of apple support and is still lagging . i am dissapointed and do not know how to solve it , my HW was chcecked and repaired so is SW problem . Can someone help me ?
thank you many times



Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus



To trouble shoot further you can:


—Try a SafeBoot https://support.apple.com/en-us/HT201262

Takes noticeable longer to get to the login screen, does a 5-15 minute disk repair before it fully boots up, and certain system caches get cleared and rebuilt, including dynamic loader cache, etc. Login and test. Reboot as normal and test as caches get rebuilt.


In Safe mode third party system modifications and system accelerations are disabled, it removes malware, etc hampering smooth operation, however a reboot will put it back to normal mode.


This test will tell you if third party interference; extensions etc are not loaded in safe boot mode.



—Test issue in another user (or guest user) account  https://support.apple.com/en-us/HT204443

This will tell you if it a universal issue or isolated to your user/admin account. 

Big Sur lagging

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