MAC Air is slow and at time hang

My mac air 13" 2020 has new battery, plenty of storage space, set a fan under notebook and one by the side to assure cooling , have done many reset SMC & NVRAM, clean my desk top , ... but lately it keep slowing down at time hang for a while , ... what can be done to return as fast and prompt operation??


MacBook Air 13″, macOS 15.7

Posted on Dec 14, 2025 10:18 PM

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Question marked as Top-ranking reply

Posted on Dec 15, 2025 3:51 AM

I don't think that heat is the problem (unless the air vents are completely clogged).


You may be running out of space.


To prevent a long back and forth of questions: Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

By looking at the report we are likely to find what issues may exist that cause your mac to be so slow.

3 replies
Question marked as Top-ranking reply

Dec 15, 2025 3:51 AM in response to francoisgs

I don't think that heat is the problem (unless the air vents are completely clogged).


You may be running out of space.


To prevent a long back and forth of questions: Please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

By looking at the report we are likely to find what issues may exist that cause your mac to be so slow.

Dec 15, 2025 6:11 AM in response to francoisgs

Etrecheck is a diagnostic utility by etresoft, a long time contributor to these fora.

It produces an anonymized report so other users here trying to help can know about mac model, OS version, disk space, third party software modifications... and often helps resolve issues.

It does not modify your mac in any way, and you can see the report for yourself before posting anything.

If you look around this forum you will see many instances of these reports being posted, and get a feel for what they look like.


Etrecheck can be downloaded for free from its website, etrecheck dot com.

There is also a paid version with extra features.

MAC Air is slow and at time hang

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