MacOS Big Sur Lagging

Clean installed Catalina from USB, reformatted twice, back to Catalina, my lagg problems on 2015 MBP gone. FAST AND FURIOUS.

USB CLEAN INSTALL BIG SUR MBP 12.1. Minutes waiting for account switch, web pages etc. Tried updates etc. downloaded Catalina from Mac Store, USB, triple reformat, Catalina up and running, docs reinstalled, problem gone. Fast and productive..

MBP 15 - 2018 i7 2,2GHz 16GB RAM

My problem was : open video in "preview" mode was lagging has hell, the video wasn't fluid and during this time the Touch Bar was just UNUSUABLE. In general all app that need "graphic" like PowerPoint, open a PDF in preview... was lagging...a lot.

I fixed it, how I did ?

I reset my Mac last night (factory settings), then reinstall the os, clear the SMC, the NVRAM, the problem was still here (bad news).

The first "solution" is to force the graphic card to work all the time, "Settings" -> "Battery" -> "automatic switching of graphics" But the Mac is getting hot because of the graphic card, and consume the battery life, it works but it's not ideal. 

The second solution (the one works for me) is to go to "setting" -> "monitor" and change the scale, try to see if it's better, if yes, then restart your Mac, and normally you should be fine !

Hope it works for you ! ⚙️

I have had the high AppleUserHIDDrivers CPU usage issue with 11.1 for a while on my MacBook Pro 15-inch 2019. I have an external HDMI monitor plugged in to an USB-C adapter.

Installing the 11.2 Beta 2 (20D5042d) has fixed the issue and I have not had any problems for 2 full days.

I have same issue. I bought a new IMAC in December. When the computer goes to sleep or I walk away for a short period of time it takes 30-60- seconds for the internet to kick in. I have Big Sur. It doesn't matter whether I use Safari/Chrome or try to open app and application I cannot access it. I have called tech support every week. We have done every test known, and video taped the problem using quick time, and have done a data capture which was forwarded to apple twice. It has been escalated a number of times, but same issue. If this is a BIG SUR issue can we go back to Catalina until it is resolved!

Can someone explain why I have to repeat my issue every time I call tech support. Do they not keep notations of what was done the last time I called. I have wasted hours and hours trying to resolve this. Losing my patience with apple. Love apple but common lets address this......

FWIW
My Mac 27" 2019 was running fine till I installed Big Sur, then it ran like a dog.
I followed one of the posts here relating to SMC (I neither know nor care what that is!) and shut down, unplugged, waited 15 seconds, re-started.
Problem fixed.
Ugh! but thanks

15 inch, 2018 MBP, i9 with 32GB RAM:

• bootup takes twice as long

• after each reboot the search has to reindex (i use it to open my apps which now is useless)

• starting apps in generall is super slow. once that app is not in focus for 5min and i want to get focus on it by using the doc, there is a delay between 1 to 5min?!

• opening links in other apps can take up to 5min as well?!

• bluetooth connection is very poor

really hope apple will fix all this issues and TEST their updates in the future. very disappointing what they do lately and always tell us that they have the best user satisfaction... please focus on the basics again and not just about the money. thanks

MBA 2017

Mojave was a meh
Catalina grew up really good and now is a great OS
Big Sur is a *Big* meh -> rolled back

I think that Big Sur is the worst release since Lion
I think that the team was so focused on Apple silicon that probabily nothing will be ever optimized back for x86 cpus. I hope to be wrong but i remember back the days of PPC -> x86: Tiger GREAT, Leopard GOOD but really really better on x86, Snow Leo on Intel was a lighting and Lion was a buggy release initially, from Mavericks to El Capitan all great releases.

I hope to be wrong but i think that x86 mac should continue to run on Catalina.

So far in the last few month Apple has stolen many days of work from me not to mention the amount of stress they have cause me.

Apple stop releasing software that you have not tested!

3 in a row, that’s should be embarrassing!

1. Sep 20 - iPhone iOS 14 - Total disaster complete ruin my phone for almost two months....Severe overheating, maps constantly crashing, extreme data use!

2. Sep 20 - watchOS 7 - Total disaster watch battery reduced from 1.5 days to if I’m lucky lasting until lunchtime, many weeks until a software update fixed the watch problem.

3. Jan 20 - BigSur Total disaster (why don’t I learn not to trust Apple’s software updates)

• minimum 60 second to start up

• constant pinwheel

• safari fails to open various website or takes for ever

• laptop indicates battery flat and needs charging on restart battery is 60% [battery condition - normal]

• constant crashing

• need for constant restarts

And finally yet again my MacBook keyboard is falling apart, again it’s was replaced one year ago!

So Yesterday I bought a late 15 MacBookPro and I was really happy for that. But all my expectations are turn into shit-show after using the Mac with BigSur. The battery draining too much fast, the launchpad scrolling horizontally hangs, Safari takes too much time to open, and finally boot up time is 1 minute.

I had to say this I'll not buy the Mac again in life.

Regards,
Ahsen Saeed

What did you expect when you DOWNGRADED from OS X to OS II ?

My system is now unresponsive for several minutes at a time!

I'm going to Tommy's. His Dad uses Linux!

Has Apple even acknowledged or mentioned knowing about this issue? I'm a software developer, so I definitely understand that even after testings, weird things can happen once something ships, but what infuriates me is its been months and I don't think Apple has even responded to this. We should've had a fix by now, but if nothing else, acknowledgment that this would be fixed at some point would be great, versus pretending everything is good and just hoping no one fusses or it.

It is just crazy. Made a clean install of Big Sur 11.1 and it worked "ok" I would say. Had a startup on my iMac 2017 of about 5-6 minutes. Way worse then Catalina but ok.

Now automatic updates that I do not have cancelled put 11.2 over it, and again 15min startup. Nice one apple really nice one. AND the biggest let down is that time machine backups from Big Sur are not compatible with Catalina. So Catalina setup requires completley manually copying of all files really nice apple.... I am done with Mac OS next one will be windows again...

the cursor stuttering bug is still not fixed for MacBook 16 inch BIG SUR 11.2 - Apple doesn't seem to care about us - it hasn't been able to fix the bug since the macbook pro 16 inch was released

WTF Apple.... Why would you release such a crapy OS on us... It's not the first time, but the first time I'm thinking of not buying apple anymore after almost 16years of loyalty....

Video editing is slow as my previous Macbook 13" i had before this Mascbook Pro 15" 2018 with 32GB of RAM... Everything has slown down to a crawl....