Why is my Mac running slow? 8 ways to speed it up

Is your Mac running slow? Don’t worry. Here you’ll learn a few tweaks to speed up your Mac.

All Macs slow down over time. And the reasons behind it are different. When your Mac starts to slow down, you may find that apps stop responding, the rainbow wheel spins, or worse, your Mac freezes.

It’s not hard to imagine how inconvenient a slow Mac can be to your work and life. But don’t worry, we’re here to help! In this article, we’ll show you 8 ways to make your Mac as fast as ever.

Let’s jump right in.

Why is my Mac running slow?  8 ways to speed it up

Why is my Mac running so slowly?

Working on a slow Mac is really frustrating. But before we learn how to speed up your Mac, let’s take a look at the reasons why your Mac might be slow.

A variety of reasons can cause a Mac to slow down. The main ones are:

  • There is not enough storage space.
  • Too many processes running in the background.
  • Too many startup programs.
  • An outdated macOS.
  • Mac hardware problems.

How to make your Mac run faster

Now that you know why your Mac is slow, we come to the part you’re most interested in – how to speed up a slow Mac. Here’s what you can try:

Optimize Mac storage

The amount of free space you have is directly related to the performance of your Mac. Fortunately, macOS Sierra and later Macs have a built-in storage optimization feature that automatically frees up some space when you’re running low on storage.

To see how your storage is being used and how much space is left, click Apple menu > About This Mac > Storage.

Check the free space on your Mac

To optimize your storage, simply click the Manage button above the storage bar, and you’ll see 4 optimization suggestions. All you need to do is optimize your Mac as recommended.

Optimize Mac storage

Clean up junk files

When you use your Mac, you inevitably download a lot of files. Some files may be useless to you, but you did not delete them in time. As a result, they take up a lot of valuable space to build.

Files that can be safely deleted include DMG files, files in the trash, duplicate files, corrupted files, and unrecognizable files. In addition, caches and logs can also be freely cleared from the system, applications and users.

If you want to quickly delete junk files from your Mac, try BuhoCleaner, one of the best Mac cleaners. It can clean all kinds of junk files on your Mac with just one click. Click the button below for a quick test.

Quickly clean your Mac with BuhoCleaner

Uninstall unnecessary apps

Apps can also take up a lot of storage space. Have you noticed that some apps haven’t been used for a long time or have never been used since they were installed? Whether you have enough storage or not, it is recommended that you remove them from your Mac.

Dragging an app to the trash doesn’t delete it completely. Its support files are still on your hard drive. As you know, it is not easy to find and remove them manually. But if you have BuhoCleaner on hand, you can save a lot of time and effort.

In addition to being a Mac cleaner, BuhoCleaner is an easy-to-use app uninstaller that can completely remove multiple apps with one click, including stubborn antivirus programs like Avast and Bitdefender.

Here are the steps:

  1. Download, install and open BuhoCleaner.
  2. In the sidebar, click “Uninstall an app” and you’ll see all installed apps.
  3. Filter and select unwanted apps, then click Remove.
Quickly uninstall apps on Mac with BuhoCleaner

Stop resource intensive processes

As mentioned above, having too many programs running in the background can slow down your Mac. They consume so much memory and CPU resources that your Mac may not have enough resources to complete its operations.

Activity Monitor is a handy tool that lets you check which processes are eating up your CPU and memory. You can quickly launch it with Spotlight. When open, find unused programs and processes, select them, and click the Stop button on the toolbar to exit or force quit.

Stop the process of hoarding resources on Mac

Disable unnecessary startup programs

Startup programs are applications and services that start automatically when you log on to your Mac. The more they are, the slower your Mac will boot. If your Mac is slow due to too many startup programs. Time to delete that junk.

Here’s how to remove startup programs from your Mac:

  1. Click the Apple icon and select System Preferences.
  2. Click Users and Groups > Access Points, and you’ll see a list of apps that automatically open when your Mac starts.
  3. Select the app you want to remove, open the lock in the lower left corner and press the Minus (-) button.
Turn off Sign-in items on your Mac

In the latest macOS Ventura, the steps are slightly different.

In fact, in addition to the listed login items, there may be other unwanted launch services such as Launch Agents and Launch Demons.

The free Startups feature built into BuhoCleaner helps you easily manage all your logins and services. Click here to download and try.

Remove browser extensions and plug-ins

You must have added many extensions and plug-ins to your browser to improve your experience. However, these extensions and plug-ins are automatically launched every time you open your browser, which puts a lot of pressure on your memory.

Therefore, it is better to remove unnecessary extensions and plug-ins from your browser in order to save memory space.


  1. Open the Safari browser.
  2. Click the Safari menu and select Preferences.
  3. Click the Extensions tab, select the extension you want to remove, and click the Uninstall button next to it.
    Remove Safari extensions


  1. Open Chrome.
  2. Click the three-dot menu in the upper-right corner and select More Tools > Extensions.
  3. Disable or remove unnecessary extensions as per your needs.
Remove Chrome extensions

Having too many browser tabs open can also slow down your Mac’s performance. It is recommended to close the unused passages in time.

Update macOS and apps

Thanks to Apple’s regular optimizations and updates, macOS has become smoother and faster. If you haven’t updated MacOS in a while, it’s a good idea to do it now.

Simply click on the Apple icon, select About This Mac, and click Software Update to update your macOS to the latest macOS compatible with your Mac.

Software update

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If you want your apps to run faster, keep them updated as well. Go to the App Store, click Update, and then update your apps to the latest version.

Replace or upgrade Mac hardware

The above steps to speed up your Mac may not work on older Macs with very limited hardware. To fix such a slow Mac, first replace or upgrade the hardware.

The Bottom Line

Hopefully, by following the steps above, you’ve made a noticeable improvement in your Mac’s performance. Note that we have listed only some of the key optimization steps here. In fact, rebuild the Spotlight index, clean up your desktop, reduce visual effects, reset PRAM and SMC, move large files to an external hard drive or cloud, add more RAM, disable FileVault encryption, and more. There are many more steps like .

As you can see, we have mentioned BuhoClenaer several times. It’s perfect for cleaning and optimizing your Mac. Why not try it yourself?

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