MacOS Big Sur Lagging

Same here.
Lagging when opening files, unzipping, some times happens sometimes don't.

I bought a 2015 MacBook about a month ago.
Macbook pro 2015
Core i7
16 ram
512 ssd
I was very happy, as it is my first experience with a Mac system, especially since the device has very high specifications.
Little did I know that I would spend all that time researching how to solve the slow and freeze issues in this system.
70 second startup
60 second after enter password
30 scond to open safari or another any app
If i enable switch graphic
Every thing lags mouse ,typing.
I tried
==>Instailed catalina same Problem.
==>Update to big sur again same Problem
==>Instail big sur from usb same Problem
I make every thing
==>Shift+ctrl+Optian+R
==>Option+d +power
==>Alt +ctr+p+r +power
==>D+power
==>Option+d+power

.....
....
...
==>A+b+c
==>X+y+z

Safty mode,recovery mode,EarseF,First Aid

After many attempts, I found the best solution is to install Windows on the device.
The Windows system on the device works great
I think I missed something in my attempt to enter the world of Mac.
Sorry microsoft come back to you

Same for me which is really frustrating.. It was resolving when shutdown but then happen again.
I tried to reset SMC and NVRAM but did not solve anything.


MacBook Pro (16-inch, 2019)
2,6 GHz 6-Core Intel Core i7
16 GB 2667 MHz DDR4
Macintosh HD
AMD Radeon Pro 5300M 4 GB

Same here after the Big Sur update almost everything is lagging, like for simple opening folders or files or unzipping them.
My MacBook is

1) MacBook Air early 2015 model
2) 1.6 GHz Dual-Core Intel Core i5
3) 4 GB 1600 MHz DDR3
4) Intel HD graphics 6000 1536 MB

Apple please resolve the issue. Thanks.

Same here:
Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro16,1
Processor Name: 8-Core Intel Core i9
Processor Speed: 2,3 GHz
Number of Processors: 1
Total Number of Cores: 8
L2 Cache (per Core): 256 KB
L3 Cache: 16 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB
System Firmware Version: 1554.80.3.0.0 (iBridge: 18.16.14347.0.0,0)

Same problem over here! I'm really getting crazy. I work a lot with Adobe Creative Suite. Normally I could have three programs open at the same time. Now I'm seeing the beach ball every 3 min with just one program open.

iMac (Retina 5K, 27-inch, 2017)
4,2 GHz Quad-Core Intel Core i7
32 GB 2400 MHz DDR4
Radeon Pro 580 8 GB

I've never ever had so many issues with my Mac. Software developers blame Apple! I've wearied them troubleshooting issues, but it is clearly Apple. Apple's own apps lag and crash! Anything big lags and crashes! All my professional software, DEVONThink 3, Tinderbox 8, Curio, Affinity Photo, or DeVinci Resolve crash in Big Sur. I start up the software and it's a crapshoot as to when I get the "app has Quit unexpectedly" and it's affecting my productivity at work. Sadly this is on an my new M1 so I have no idea of knowing if it's this is Apple's silicon or Big Sur??? 🤨. I really do not have the time to troubleshoot all these issues, so I'm just left feeling very soured with my M1 purchase. 😠

MacBook Pro (13-inch, M1, 2020)
MacOS Big Sur: 11.2.3 (20D91)

I found that connecting to a display of 1080p with the Retina display turned off fixes all lag issues of the Mac except the notification centre lag I would say it is an issue where Big Sur doesn't like the Retina display that much.

Shame on Apple, It seems there is a plan to force us to change to M1 terminals. Apple this is how you treat your users? asking them to throw away terminals having a market value of $1000-$2000? really?
You forced me to install Windows + bootcamp in my Macbook Pro 15" 2015 (i7, 32Gb)
Recommendation: Install bootcamp + Windows or continue being extremely unproductive with a $2000 terminal performing as a cheap $400 one.

FIXED for me after upgrading OS to Big Sur 11.2.3.
MacBook Pro (13-inch, M1, 2020)

Same here, Macbook pro 13 touch bar 2016, Bir Sur, slowed whole computer, i can see it while running thru apps, or the startup is slower than windows laptop with 4gb of ram, should i downgrade my OS?

16", i9, 32GB RAM, 5500M
Big Sur is still a mess. Lagging, application windows take 5-10 seconds to open (Apple Music, iMessage,...). System is swapping gigabytes of memory without any reason and trashing the SSD.
When mouse polling rate is above 250Hz, Window Server and AppleUserHID process cause very high CPU loads.
I reported all of those issues, they probably haven't even looked at it.

And the upcoming Xcode (12.5) forces us to use Big Sur. Great move Apple. Planned obsolescence is working as intended, huh?

Technically, CPU since core i 1st gen is more than enough for OS operation.

this is similar to iOS problem.
it is intention to slow down device + bad coding.

A loyal Mac user for 15 years, and in that time I’ve had 5 MBP15 and two MB Air. Upgrading to Big Sur significantly reduced the performance of my current laptop (functioning like new for the past 4 years) and has now brought it to a point where it is barely usable. Way to drop the ball apple, lack of response to this issue has my mind made up, my next setup will be any high end laptop (other than Apple), Ubuntu and i3.

You don’t innovate anymore and you treat your professional customers like they don’t matter. But Tim Apple keeps the stonks high so everyone is happy, right? Hope a selling fashion accessories keeps working out for you, so long and thanks for all the fish.

Same here, on OSX Big Sur 11.3

Before the update to Big Sur system startup and application startup was normal.  

Model Name: MacBook Pro
  Model Identifier: MacBookPro11,5
  Processor Name: Quad-Core Intel Core i7
  Processor Speed: 2,5 GHz
  Number of Processors: 1
  Total Number of Cores: 4
  L2 Cache (per Core): 256 KB
  L3 Cache: 6 MB
  Hyper-Threading Technology: Enabled
  Memory: 16 GB
  System Firmware Version: 427.0.0.0.0
  SMC Version (system): 2.30f2