Why So Many Spinning Balls & Hesitant Typing?

Are you running any anti - virus programs? Using a VPN?

Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.

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Fusion Drive is not my favorite storage, as the Mac spends resources shuffling data between a too-small fast SSD and a too-slow HDD. There’s not much free memory here, which means anything that spills out of memory is going to be hitting that HDD.

On a cursory look, I’d make a backup (using CCC or otherwise) and perform a test...

I’d remove the following: Malwarebytes anti-malware. That Memory Cleaner app. The NetShade VPN stuff. And Cocktail.

There’ve been reports of issues with some versions of Flux, and I’d either check for updates with that, or temporarily remove it.

Other comments:

I’m skeptical of fan control apps, save as a way to monitor or to increase fan speeds. Decreasing fan speeds should never be attempted.

Other issues: Silverlight is long deprecated, Shockwave was deprecated last year, and Oracle Java, unless you’re specifically using those. If you are using Oracle Java, have a look at the JDK licensing details as some configurations and some uses of that seemingly require payment to Oracle.

Time Machine snapshots are enabled.

Your system load is heavy.

Some browser tab is chewing up a lot of memory.

Bonjour is very busy. Unclear why.

1: remove Java and see what breaks.

2: That’s probably what is causing the beachballs. Which is what we’re working on. Activity Monitor might show that, CPU and I/O, or removing what was previously discussed.

3: Or in an alternative interpretation, Facebook web site doesn’t handle the Safari browser well.

4; Bonjour is a local network configuration tool; it’s how Macs and local storage and local printers can find each other.

1: Brave has not been without controversy. Here's one recent write-up on some purported and unexpected behavior of this browser, and there are others. Collecting money on behalf of folks without their permission was also reported a while back, and that was unpopular with various folks, as well. I had Brave installed here, but removed it a while back.

2: I doubt Java is causing this. That if you aren't using it, you would want to remove it, was the suggestion. Other issues: Silverlight is long deprecated, Shockwave was deprecated last year, and Oracle Java, unless you’re specifically using those. If you are using Oracle Java, have a look at the JDK licensing details as some configurations and some uses of that seemingly require payment to Oracle.

3: It? What's used by everyone? Safari? Different websites have different usage, and different folks visit different websites. Often with different extensions, too.

Quoting Wikipedia: Although there are similarities between JavaScript and Java, including language name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design.

Pragmatically, JavaScript and Java are quite different.

Most JavaScript implementations are now technically supporting the ECMAScript standard, but... adoption of that nomenclature has been slow.

Apple supports JavaScript (ECMAScript) on Apple products.

Oracle supports Oracle Java for Oracle operating systems, and also on selected other platforms.

Apple does not offer nor support Oracle Java.

Microsoft Silverlight and Adobe Shockwave were retired by their respective vendors, and Adobe Flash follows later this year.

Adobe Flash hasn’t been needed for YouTube and other streaming-content services in quite some time.

Very few websites—outside of a business and its own internal-use apps—uses client Java. I haven’t encountered a website with a generally-accessible Java client dependency in most of a decade. Java can be needed for some integrated development environments (IDEs), and for some business-specific apps. A Java client is not needed for general web browsing.

There will certainly still be some pockets of Silverlight, Shockwave, and Flash usage, but the rest of the world has moved on. Keeping the retired apps around and active can leave a user vulnerable if some exploit is found, too.

Or as was mentioned earlier... Remove Java. See what breaks.

In addition to the above, the report shows you haven't restarted the computer in 10 days. A restart resets things. I suggest you try restarting.

1: Your call.

2: JavaScript is widely used. Java hasn’t been part of macOS in many years, and there’s no Java on iOS and iPadOS.

3: You've nested your list.

Oracle has available documentation for removing Java and Microsoft for removing Silverlight.