MacTutorial

How to Speed Up a Slow MacBook in Simple Steps (2026)

TG By The TechFix Guide Editorial Team  ·  Updated  ·  How we check our guides
A MacBook open on a wooden desk beside a coffee cup, softly lit by a window

Your MacBook takes two minutes to wake up, the beach ball appears every time you switch apps, and Safari feels like it is wading through mud. Before you consider spending money on repairs or a new machine, work through the steps below. They are ordered from quickest to most involved, they are all safe for your files, and together they fix the vast majority of slow-Mac complaints I hear about.

Step 1: Restart — Actually Restart It

Mac users famously leave their machines asleep for weeks. Sleep is not a restart: memory leaks from apps that ran for days keep piling up, and a single misbehaving app can drag everything down.

Click the Apple menu → Restart. If the restart checkbox "Reopen windows when logging back in" is ticked, untick it — reopening 30 windows just rebuilds the mess you are escaping. This alone fixes a surprising number of "my Mac got slow" cases.

Step 2: Find the Culprit in Activity Monitor

Don't guess which app is slowing you down — look it up.

  1. Press Command + Space, type "Activity Monitor", and open it.
  2. Click the CPU tab and sort by the % CPU column.
  3. Anything pinned near 100% for minutes at a time is your suspect. Select it and click the X button (Quit) if you don't need it right now.
  4. Repeat on the Memory tab: if the "Memory Pressure" graph at the bottom is yellow or red, your Mac is short on RAM. Close the biggest memory consumers, especially browsers with many tabs.

Keep an eye out for background helpers you forgot about: old VPN clients, cloud sync tools running constantly, menu-bar utilities. They are small individually but stack up.

Step 3: Trim Login Items

Every app that launches at startup slows down every single morning.

  1. Open System Settings → General → Login Items & Extensions.
  2. Under "Open at Login", remove anything you don't recognize as essential. You can always open apps manually when needed.
  3. Also review the "Allow in the Background" list — these launch invisibly and are a common hidden drag.

Step 4: Give Your Storage Room to Breathe

macOS needs free space on the system drive to work smoothly. When your disk is nearly full, everyday tasks slow to a crawl because the system struggles to write temporary files.

Go to System Settings → General → Storage. macOS will suggest what is taking up space. The usual offenders: old iOS backups, "Downloads" folders stuffed with installers, video files dumped from phones, and duplicate apps in Applications.

Empty the Trash after a big cleanup — files in the Trash still occupy space. If you work with video or photos, offloading finished projects to an external drive is often the single biggest relief you can give an older MacBook.

Step 5: Tame Your Browser

For many people the browser is the slow app, not the Mac.

  • Close tabs you are done with — each one holds memory. A tab manager extension can help if you hoard them.
  • Check your extensions. Ad blockers and "free PDF converter" toolbars are frequent hogs. Remove any extension you have not used in a month.
  • If Safari is slow but other apps are fine, clear the website data: Safari → Settings → Privacy → Manage Website Data → Remove All.

Step 6: Ease Up on Visual Effects

On older Intel MacBooks especially, animations cost real performance.

  1. System Settings → Accessibility → Display → turn on Reduce motion.
  2. Desktop & Dock → untick "Animate opening applications" and set "Magnification" to off.

The interface feels snappier immediately, and nothing functional changes.

Step 7: Keep macOS and Apps Updated

Updates are not just features — they include performance fixes for exactly the slow-downs you are fighting. Check System Settings → General → Software Update. Then update your heavy apps (browsers especially) from within the apps themselves.

What Not to Bother With

Skip the "cleaner" apps that promise to speed up your Mac in one click. Most constantly run in the background — the very thing you are trying to avoid — and the useful ones duplicate what Storage settings already do for free. Also, on Apple Silicon Macs there is no need for old-school rituals like resetting the SMC; those steps apply to older hardware and are no longer part of the routine.

Quick Checklist

  • Restarted with "reopen windows" off
  • Activity Monitor shows no runaway CPU or red memory pressure
  • Login items trimmed
  • Storage has comfortable free space and Trash is empty
  • Browser tabs and extensions under control
  • macOS and key apps updated

Work through this list and your MacBook should feel noticeably more responsive the same day. If it is still struggling after all of this, the next suspects are a failing drive (check Disk Utility → First Aid) or a battery in poor health affecting performance — both worth a look at an Apple service point. But in most cases, the steps above are all it takes.