2019 iMac sluggish startup and system overload with Logic Pro playback

Hello. I've been having sluggish startups for a month or so to the point that I now turn on the machine and walk away for 5-10 minutes before being able to open and run anything. Also, launching a program for the first time in the day is a waiting game for it to load and be able to do anything like type into a google search. Usually, once a program is opened and running, I can operate just fine.


The biggest problem is playback in Logic. The system overload error that stops playback has increased in frequency over the last month, I'd say, and now with all tracks frozen and buffer set to 1024, and opening the same sessions I've been working on for months I'm now not able to get more than 5 seconds or so of playback before it halts and tells me it's a system overload.


Is this a hard drive issue? If so, how do I know that for sure and what to do about it? I have daily backups to an external drive.


2019 iMac Retina 5k, 27 inch

Processor: 3.7 GHz 6-core Intel Core i5

Graphics: Radeon Pro 580X 8GB

Memory: 40GB 2667 MHz DDR4

2TB Fusion Drive

macOS 13.7.4


Thanks in advance!


iMac 27″, macOS 13.7

Posted on Feb 25, 2025 2:56 PM

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Posted on Feb 26, 2025 8:00 AM

Huh, that's weird. I removed clean my mac about a year ago. Is there a log file or something still in place?


I get what you're saying about Chrome, but it is very useful for cross-platform productivity so I think I'll just make sure it's not running while using Logic.


I ran a DriveDX report and it shows the HD side of my Fusion Drive is failing so I think it's end of the road for it and time for a new drive.

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Feb 26, 2025 8:00 AM in response to D.I. Johnson

Huh, that's weird. I removed clean my mac about a year ago. Is there a log file or something still in place?


I get what you're saying about Chrome, but it is very useful for cross-platform productivity so I think I'll just make sure it's not running while using Logic.


I ran a DriveDX report and it shows the HD side of my Fusion Drive is failing so I think it's end of the road for it and time for a new drive.

Feb 25, 2025 3:16 PM in response to remnant_simplyreal

Please run an EtreCheck (free) evaluation of your Mac and post the generated report back here in a reply. EtreCheck is a safe and highly regarded utility from a trusted developer and respected ASC contributor. The diagnostic report will not include any personal info. It simply gathers specifics about hardware performance and installed software that might be in conflict with the OS.


Please navigate to EtreCheck.com to download the utility. Be sure to Allow Full Disk Access when you install the app. Once you’ve run the app and created your report please post it with your reply to this message. 


Please note you must upload the full report. To see how, please clickHow to use Add Text when posting… EtreCheck Report.


We’ll use your EtreCheck report to look for the things that may be causing your problem and advise how to correct them. We'll be able to tell you if it's a drive problem or possibly something else.

Feb 26, 2025 7:55 AM in response to remnant_simplyreal

Your EtreCheck report looks pretty good to my eye. Other's may respond with additional input.


I do see reference to Clean My Mac.

To many veteran users here in the Community, myself included, CMM is akin to malware and is often implicated in the poor performance of a Mac. The app is unnecessary and often indiscriminate in the removal of files. You would be wise to uninstall it completely pre the publisher's guidance.


Also I see Chrome.

The browser is a know resource hog that eats CPU cycles. I would remove that as well. If you choose not to remove it, be certain that the app is not running in the background as you use Logic.

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2019 iMac sluggish startup and system overload with Logic Pro playback

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