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extremely slow performance (i-mac pro 27 inch) after upgrading to Catalina 10.15.6

I have i-mac Pro 27 Inch Retina 5K (Late 2014 model).

The computer performance was extremely good.

However, after upgrading to mac OS Catalina 10.15.6, the performance has become extremely slow.

Even opening an app, system preferences, Shutting down and restarting take enormous amount of time (in terms of minutes).


Is there a fix to this problem?


Thank you.

Posted on Aug 5, 2020 12:01 AM

Reply
6 replies

Aug 6, 2020 1:26 AM in response to Ronasara

Thanks for response.


1) I don't have any antivirus apps or Mac cleaner apps installed.

In fact, no other app is installed other than whatever is installed by default during OS installation.


2) 8 GB RAM is available. I think that should be good enough. Please find below the system configuration.

I checked the memory pressure as well. I t is less than 30%


3) I am uploading the report by EtreCheck.




Aug 6, 2020 8:43 AM in response to Sachinys

Well I see 2 major issues. First the computer only has the original 8GB of RAM, this should be upgraded using either Crucial.com or Macsales.com RAM. I would install an additional 16GB or 32 GB or RAM into the two empty slots in your computer. This is very easy to do, it requies no tools and can be done by just about anyone in less than 10 minutes.


The 2nd thing I see, is there is no evidence you backup the computer. This is a 100% guarantee you will lose data. At the very least you should have an external HD (2-3 times the capacity of the internal HD) and use Time Machine which is pre-installed on the computer. I recommend one of these EHD's https://eshop.macsales.com/shop/owc-mercury-elite-pro and you can learn about Time Machine in https://support.apple.com/en-us/HT201250


Finally, your computer is 6+ years old, this means it is getting to the age when a HD can begin showing signs of failure. I am not trying to scare you, but you should be backing up in the event that does occur otherwise all of your data (photos, music, important documents, apps etc...) will be GONE. Your HD may be good for another 6 years, but operating the machine without a backup plan is very shortsighted!

Aug 5, 2020 8:03 AM in response to Sachinys

Since we know nothing about how your computer is equipped, it is hard to respond. Apparently Catalina does use more RAM than other operating systems. You may have been operating with Minimal Ram and the upgrade tipped you over the edge. Do you have any antivirus apps or Mac cleaner apps installed? If so, remove them as they are completely unnecessary. We recommend that you download and run the free app EtraCheck, allowing full disk access. Then you can post the report down below under Additional text. That will usually enable some useful observations.

extremely slow performance (i-mac pro 27 inch) after upgrading to Catalina 10.15.6

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