How to Speed Up a Slow MacBook: Practical Fixes That Work

A slow MacBook wastes time every day: apps that take forever to open, a spinning wheel during video calls, and startups that feel endless. Before you shop for a new laptop, try these fixes. Most take only a few minutes, and together they can speed up a slow MacBook noticeably.

1. Restart and update

1. Restart your Mac. If you only ever close the lid, apps and background processes can pile up over weeks. A restart clears them.
2. Update macOS. Go to System Settings > General > Software Update (or System Preferences > Software Update on older macOS). Back up first, and read our guide to updating macOS safely.
3. Update your apps through the App Store or the app's own updater. Old versions can be buggy or inefficient.

2. Free up storage space

macOS needs free space for virtual memory, caches and updates. When the drive is nearly full, everything slows down. Check System Settings > General > Storage (or About This Mac > Storage on older versions). If you're short on room, follow our step-by-step guide to free up storage space on a MacBook.

3. Find what's using your Mac's resources

1. Open Activity Monitor from Applications > Utilities.
2. On the CPU tab, sort by % CPU to find apps working hard in the background.
3. On the Memory tab, check the Memory Pressure graph at the bottom. Green is fine; yellow or red means your Mac is running short on memory.
4. Quit apps you aren't using, especially web browsers with dozens of tabs.

4. Trim startup and background items

• Login items: go to System Settings > General > Login Items and remove apps that don't need to launch at startup. On older macOS, it's under System Preferences > Users & Groups > Login Items.
• Allow in the Background: on newer macOS, the same screen lists background helpers you can turn off.
• Browser extensions: remove ones you don't use. They run on every page you open.
• Visual effects: on older Macs, turning on Reduce motion and Reduce transparency in Accessibility > Display can make the interface feel snappier.

5. Check for heat and hardware limits

A MacBook that's too hot slows itself down to protect its components. If yours is warm and the fans are loud, dust or a failing fan may be throttling performance. Our guide to MacBook overheating and loud fans explains what to look for.

Hardware matters too. Older MacBooks with a spinning hard drive feel dramatically faster with a solid-state drive (SSD). On many older models, the original SSD can also be replaced with a larger one. Memory (RAM), however, is built onto the logic board on most MacBooks from the last decade, so it usually can't be upgraded.

6. Consider a clean macOS reinstall

If your Mac has been through years of apps, migrations and updates, a clean reinstall of macOS can remove leftover clutter. Back up everything first with Time Machine, because erasing the drive deletes your data. Reinstalling without erasing is also an option from macOS Recovery and keeps your files.

Need help speeding up your MacBook in Ottawa?

If your Mac is still slow after these steps, Fix Revolution can check for failing drives, heat problems and upgrade options. We offer SSD and hard drive upgrades and macOS reinstallation, with pickup and drop-off across Ottawa and Gatineau. Most repairs are done in 1 to 2 business days. Get a free quote or call 613-265-4349.

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