Restoring my Mac Performance and eliminating or reducing Beach Balls

Remove the DuckDuckGo VPN, and remove the Symantec Endpoint Protection (SEP) client add-on security app, and the remaining pieces of Little Snitch.

I'd likely temporarily disable OneDrive and DropBox for testing, as so e file system clients can get unexpectedly busy. Grammarly, too.

And yeah, the battery is failing.

Don't use any "cleaner" app. Most of them create more problems than they solve.

My suggestion is to download & run Etrecheck (it's free) and post its report here. It is a diagnostic utility written by one of the Apple Community's longstanding members. It is safe to use and does not reveal any personal information. It can be very helpful in figuring out what's going on with your Mac.

To post a copy of the report, use the "Additional Text" button:

While you are at it bet rid of Symantec End Posit Protection

com.symantec.NSVService.plist (Symantec - installed 2021-01-18)

Did you already try starting in Safe Mode, so that the Mac can diagnose itself and correct small issues?

Start up your Mac in safe mode - Apple Support

Do you have enough free space left?

I would not trust that file Get Rid of it

Find any File comes to mind

They tend to make a bad situation worse to the extent one may require " Nuking " the machine and starting over from scratch

Add-on cleaners and add-on security apps are why these messes too often get rolling, and that’s before we discuss the effects to security and privacy that too many of these add-ons can entail. Various of these add-ons are themselves all too reminiscent of being malware.

Here is the Symantec removal tool available at the Symantec (now Broadcom) website, and the directions for use from Symantec (Broadcom):

https://knowledge.broadcom.com/external/article/151387/remove-symantec-software-for-mac-using-r.html

If that is not working, please let us know what happened with it, and what errors were reported.

Please note: I did not review the statistically-generated text that Google AI generated to determine whether the statistical next-word generator guessed its word-order into a wrong answer, or guessed words into a right answer. As a technical reference source, all AI hype aside, AI text is a perilous choice at best.

Start by deleting these files & restarting…

Little Snitch Mini Network Extension - version 1.3 (App Store - installed 2023-07-17)

/Library/LaunchDaemons/com.easeus.dataprotectbackup.plist

Symantec End to End Security removal macOS

Best of luck my friend, do let us know the outcome.

+1

:-))