Irrationally high CPU usage for any task on my Mac Pro late 2013

Download and run this little "discovery" utility, Etrecheck. it solves NOTHING. Its purpose is to create a report, pre-laundered of personally-identifiable information, that can be posted back to the forums for Readers to analyze.

Using EtreCheck to Troubleshoot Potential… - Apple Community

MalwareBytes is by far the malware scanner for the Mac that is most recommended here.

However, you should run it ONLY on demand, and NEVER the way you are running it, as 'real-time protection' it provides no additional real-time protection, it just wastes system resources in a really big way. Turn that feature OFF.

These items are unsigned, not on a list of legitimate trouble-free apps, and may be malware:

 Launchd: ~/Library/LaunchAgents/com.wisetechlabs.mhelper.plist

    Executable: ~/Library/Application Support/MHelper/MHelper.app

  Launchd: ~/Library/LaunchAgents/com.wisetechlabs.wmcthirdday.plist

    Executable: /Applications/Wise Mac Care.app

Wise Mac Care should be completely un-installed.

This item is no longer supported and should be removed:

 Plugin: /Library/Internet Plug-Ins/Silverlight.plugin

when you install drive makers software, it allows you drive to stay in a foreign format, and it will NOT be available unless/until the manufacturers software has been loaded into a fully-functional MacOS. that is not available in Recovery or usable for software restore.

Best Practice has alwasy been to ERASE the drive when new using Disk Utility, and format for Mac.

  [Not Loaded] SamsungPortableSSDDriver.kext - com.samsung.portablessd.driver (2.0.0 - SDK 10.16)

You appear to be running google browser, that most notorious resource hog there is. You should strongly consider moving to a different browser that has a lighter footprint, such as FireFox or Safari, either of which are also faster.

WhatPulse? Unless you are actually tabulating and using that data for something, WhatPulse should GO.

     Last backup: 2022-12-17 00:10:52 ¿are you crazy? Time machine runs in the background. Let it run more often!

You should clean up all of these items. some may be running and trying too communicate with nobody:

Clean up:

/Library/LaunchAgents/com.logmein.hamachimb.plist

/Applications/LogMeIn Hamachi/LogMeIn Hamachi Menubar.app/Contents/MacOS/LogMeIn Hamachi Menubar

Executable not found

~/Library/LaunchAgents/com.adobe.GC.Invoker-1.0.plist

/Library/Application Support/Adobe/AdobeGCClient/agcinvokerutility

Executable not found

~/Library/LaunchAgents/com.wisetechlabs.wmc1day.plist

/Applications/Wise Mac Care.app

Executable not found

~/Library/LaunchAgents/com.wisetechlabs.wisemaccare.plist

/Applications/Wise Mac Care.app

Executable not found

This suggests your drive may be getting too full. write speed should be comparable (maybe 80 percent) to read speed, not less than half read speed.

 Write speed: 414 MB/s

  Read speed: 1102 MB/s

this is the most frequent high CPU use item:

 2023-02-01 19:02:45 factorio.app High CPU Use (5 times)

    Executable: /Users/***/Library/Application Support/Steam/*/factorio.app

the actual crashes you experienced are down to these items:

2023-02-01 18:53:19 Finder.app Hang

    Executable: /System/Library/CoreServices/Finder.app

2023-02-01 05:39:38 com.apple.iCloudHelper Crash

    Executable: /System/Library/PrivateFrameworks/AOSKit.framework/Versions/A/XPCServices/com.apple.iCloudHelper.xpc/Contents/MacOS/com.apple.iCloudHelper

iCloud is good for sharing cat pictures. it can not possibly perform at keeping all your work files up-to-date.

To clean inside a silver tower Mac Pro:

Move the system to someplace where dust is a don't care, e.g., garage or outside.

Remove the door or cover and blast the dust bunnies up and out of your Mac with compressed air.

Notes:

• Blast away -- cards are seated in slots with a fit that component engineers refer to as a "gas-tight" connection. so you can not blow dust INTO those connections.

• When cleaning cooling fans, do not be unrelenting or you can cause damage by spinning too fast or too long.

• DO NOT use a household vacuum on your sensitive electronics -- their plastic tools can cause huge static electricity that can damage components before you feel the Zap of a static discharge. If you choose to vacuum, use only a vacuum approved for use with electronics.