MacOS Big Sur Lagging

Same here... even mouse gets laggy sometimes

MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)
3,3 GHz Dual-Core Intel Core i5
16 GB 2133 MHz LPDDR3
Intel Iris Plus Graphics 650 1536 MB

Same on MBP 2015, after update it is impossible to play even Diablo III on lowest settings, any option to rollback to previous MacOS?

Macbook Pro 2020 after big sur update horribly laggy. I used to play Dota 2 on MBP late 2013 without any issues and now this 7 year old game is unplayable on latest MBP that cost me 2500€. This is a joke, I am seriously thinking to finally switch to windows again

A similar problem. slows down graphics, scrolling, animation.

lags when typing and erasing text, lags in any applications, especially noticeable when scrolling through pages in safari.
MBP 13 2020 i5 16gb-ram

Same macbook as OP and Dota 2 is basically impossible to play after updating. Constantly hangs and/or freezes in game.

2019 iMac 21.5 Slow with almost everything, login, reboot, app launch, random lag within apps. Games run like ***.

I'm also having lag problems all of a sudden. I play The Sims 4, and prior to this, it has run beautifully. I've been able to switch between apps, run multiple things at a time, use Apple Music, use Safari, chat on iMessage, whatever. Suddenly, if I'm on the game, I can't so much as type a word without a multiple-second lag. All the fluidity between programs that I loved so much is flat-out gone.

Furthermore, even when that game is closed, my computer just doesn't run as well. It runs hot, and can't multitask like it used to be able to. The activity monitor says that, at worst, I'm using approximately 54% of my system at a given time. This wasn't an issue until Big Sur was downloaded onto my computer. I'm seriously considering going back to Catalina until it gets resolved. Why do we need a new OS every year, anyway?

MBP with i9 and 16gb and my MacBook is lagging when I log in. Never did this until the Big Sur update.

to narrow it down, please look in /Library/Logs/DiagnosticReports and analyse .diag reports,

what i did notice is that Big Sur has issues with com.apple.AppleUserHIDDrivers, as you move the mouse, that driver uses a lot of cpu, triggering the cpu limit that in turn starts to run diagnostics further worsening the issue.

games are currently unplayable on Big Sur unless you reduce polling rate of your mouse.

Hello everyone.
I too have the following problems after upgrading to Big Sure:

• Lag cursor

• blurry login image

It seems I solved them by simply turning off the FileVault.
Hopefully, Apple will release an update right away.

That's disappointing. Big Sur gets off on the wrong foot...

Same symptoms on MBP 2017 i5 2.3GHz, 8GB LPDDR3, Iris Plus 640.

My iMac was running beautifully until Big Sur, it is now running like an arthritic snail. Takes ages to boot up, delay in everything I try to do! My partner has a Mac Mini and he has experienced no problems at all. A solution please Apple!

Same problem. All my usual apps are sludge at the moment. I play DOTA 2 as well and it's totally unplayable. Hope they can patch this soon.

Apps on iMac 2019 4K are also lagging. Not the same experience as with the previous versions of MacOS.

Find a solution that works for me: Reset SMC:

https://support.apple.com/en-us/HT201295

Thats it! Mac is back!