6 Reasons why MacBook Pro is running very slow and freezing

I have always believed that human-made things don’t last long, and the list includes your MacBook Pro. It just so happens that when we are about to do some important work, our machines begin to slow down. You’ll see slow response times, apps that open after a long time, and so on. You can choose to ignore these signs and find solace in a slow device or fix why MacBook Pro runs very slow and freezing. I have listed a few reasons to identify some common issues, and you can then fix them.

Reasons why MacBook Pro is running very slow and freezing

The following 5 reasons will sort to reason why your MacBook Pro is running very slow and freezing.


Related | Why MacBook Pro is the best for Video Editing

Reason 1: The basic options

When you open Activity Monitor on your MacBook Pro, you will see “launched,” “kernel_task,” or “WindowServer” that are using up all your MacBook’s resources. These processes, though, are rather inexplicit, and you can’t associate them with specific applications that are running on your Mac. In such cases, you may want to look at the following options:

Reasons why MacBook Pro is running very slow and freezing

  1. Reboot: Your MacBook Pro might be slowing down because you didn’t restart your MacBook in a long time. You can also shut down your Mac and turn it on after a few minutes. When you reboot the Mac, it clears cached files, closes programs, closes programs, and your RAM gets a fresh start. This way, your MacBook won’t rummage through tonnes of old data.
  2. Buggy app: If you notice a certain app that slows down your system, either uninstall it or exit the app when you are done.
  3. Close open apps: This one is the most basic option. If you are witnessing a slowing or freezing, close all open apps. Ensure that you don’t just close the windows, but right-click on the app icon in the dock and tap on “Quit.”

Reason 2: Resource-hogging apps

Several poorly optimized apps hog your Mac’s memory and processing power, making your MacBook Pro slow down. But, some known culprits hog your processor. Google Chrome (or other browsers) can freeze your machine at times. Moreover, Google’s Backup and Sync app can also be a cause for your MacBook’s performance drain.

Video or image editing apps such as Adobe Premiere Pro or Photoshop are also resource-intensive. You’ve got to accept that there isn’t any fix for it. There’s no real getting around these apps since they require such computing power in order to render large image files.

Reason 3: CPU

They say that the CPU is the brain of your computer. If it doesn’t function appropriately, you might encounter freezes, slowdowns, and unexpected shutdowns. View your currently active apps in the Activity Monitor. You can also use benchmark apps such as Geekbench to gather more information. You can then use the Mac benchmark charts to see how it stacks up.

Reason 4: GPU

MacBook Pros with a dedicated GPU can install tools such as Cinebench or Heaven. If in case your GPU has problems, you might notice disappointing performance in 3D applications, onscreen artifacts, glitches, or system freezes.

You cannot fix CPU or GPU issues since they are fixated. There will always be resource-intensive apps that will slow down your Mac. You can either use a lite version or buy a new Mac.

Reason 5: Storage

Reasons why MacBook Pro is running very slow and freezing

Your MacBook can be old or new, but it could be a serious issue if it has failing drives. Most MacBooks are equipped with SSDs. Even though these aren’t likely to fail suddenly as hard disk drives do. But, checking the health of your SSD can save your data and money. Tap on the Apple logo in the top-right corner > Select ‘About This Mac’ > Select ‘System Report,’ and then tap on Storage. Now, select your main drive, which could be labeled ‘Macintosh HD.’ Scroll till you see ‘S.M.A.R.T. Status” and see what is written adjacent to it. If it states ‘Verified,’ your drive is performing normally, with no issues. If it states ‘Failing,’ you know what the source of your problem is. Ultimately, the drive will become ‘Fatal,’ you will have to replace it for a functioning MacBook.

Reason 6: Old hardware

If you are facing slow down and freezing on your 5-year-old or more MacBook, the clear problem is aging. A 2013 Mac won’t function optimally, no matter how much optimization Apple deploys. The older your Mac gets, the more issues you will face, especially in terms of its performance. New software needs great hardware, but your MacBook’s hardware can’t be changed.

You shouldn’t face slowdowns for the first 2-3 years, but you will see that your MacBook Pro is running very slow and freezing after that time period. After 5 or 6 six years since the purchase date, you can either use less resource-hogging software or buy a new Mac.


Why is my MacBook Pro so slow all of a sudden?

Internet cache, buggy program, storage, etc., could slow down your MacBook Pro.

How do I find out what is slowing down my Mac?


Activity Monitor can assist you in finding the reasons why your Mac is slowing you down. To access it, go to Applications > Utilities. In the Activity Monitor, you’ll see a list of apps and processes running in the CPU tab will be selected.

Why is my MacBook so laggy?

If you haven’t restarted your MacBook in a while, you might see a slowdown. When you restart the Mac, it closes programs, clears cached files, closes programs, and your RAM gets a fresh start. This way, your system won’t hunt through tonnes of old data.

How do I clean up my Mac to make it run faster?

To make your Mac run faster, you should:

  • Free up your storage.
  • Delete the unused applications.
  • Shut memory-hogging processes.
  • Manage startup apps.

How do I empty my cache on a Safari?

To empty cache on a Mac, select Safari > Preferences > Advanced. Now, enable the ‘Show Develop menu in menu bar’ option. Close the preferences window. Select ‘Develop’ from the browser menu. Now choose ‘Empty caches.’ You have successfully cleared all the caches.


Some other issues hinder your MacBook Pro’s optimal performance. Old apps, less storage space, random login items, etc. Ensure that you explore the reasons why your machine is slowing down. If nothing works, you have two options – take it to an authorized services center or buy a new one.

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How is your MacBook Pro performing? Do you identify with the above-listed reasons? Let us know in the comments below.

Saurabh Jadhav
I am an ambivert, an avid reader, a movie buff, a tea connoisseur, and a staunch fan of Priyanka Chopra Jonas. I like to give my insights through words, which come naturally to me. They also help me to express the myriads of emotions I go through. When not working, I'm either watching the latest tech videos or flipping through pages.