Sequoia 15.2 upgrade causing a very sluggish machine.

I cannot open most apps after and pre Sequoia 15.2 upgrade and a reinstall of the OS too. It's back to being slooooow very much like Sonoma did. It feels like tow years of fighting the Mac, something we always seem to be doing with a PC!

iMac 21.5″, macOS 15.2

Posted on Dec 13, 2024 3:12 AM

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Posted on Dec 14, 2024 4:50 AM

Is the user using a iMac 2019 that was previously running Sonoma that was sluggish prior to updating to Sonoma ?


A 2019 iMacs can come with a Fusion Drive or also an ALL SSD Drive configuration


Fusion Drives are good for Additional Storage but at the expense of a negative performs hit especially when running under Sonoma or Sequoia


These versions of macOS are really specifically engineered to run at tip top performance on SSD Drives


Anyways, all this information would show up in the Etrecheck report if you care to run and share this report


Post back the Full Report - copy and paste - >>>> using the Additional Text Icon  <<<<



39 replies

Jan 11, 2025 2:10 PM in response to Jonah82

It's difficult to know what's necessary and unnecessary with all of the advertisement out there. They are selling whether you need it or not.


Unless you're using a true VPN tunnel, such as between you and your employer's, school's or bank's servers, they provide false security from a privacy standpoint.  Read these articles:  Pubic VPN's are anything but public and Security Risks: The Dangers of Using Free VPNs (eccu.edu).  


Uninstall the two items mentioned earlier according to the developers' instructions. You can check to see if you've removed all of the supporting files by downloading and running the shareware app Find Any File to search for any files with the application's or the developer's name in the file name.  For the software mentioned you'd do the following search(es): 


1 - Name contains vpn

2 - Name contains surf shark


Any files that are found can be dragged from the search results window to the Desktop or Trash bin in the Dock for deletion.


FAF can search areas that Spotlight can't like invisible folders, system folders and packages.  


If you get warnings that the file can't be deleted because it is in use or used by another app boot into Safe Mode according to How to use safe mode on your Mac and delete from there.


Note:  if you have a wireless keyboard with rechargeable batteries connect it with its charging cable before booting into Safe Mode.  This makes it act as a wired keyboard as will assure a successful boot into Safe Mode.


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Sequoia 15.2 upgrade causing a very sluggish machine.

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