Mac Running Slow? 7 Fixes That Actually Work

Macs age more gracefully than most laptops, but four to five years in even an M-series MacBook can start to crawl. Here are the seven fixes we run, in order, at the Repair Point bench.

1. Check your free disk space

macOS slows dramatically below 10% free storage. Open Apple Menu → About This Mac → Storage. Aim for at least 20 GB free. Empty the Trash, clear the Downloads folder and offload large iMovie projects to an external drive.

2. Tame login items

System Settings → General → Login Items. Disable anything you don't need at startup — Dropbox, Adobe Creative Cloud, Spotify and Zoom are common culprits.

3. Restart properly

If you only close the lid, your Mac never fully reboots. A real restart (Apple Menu → Restart) clears RAM, kernel cache and stale daemons. Schedule one weekly.

4. Check Activity Monitor

Open Spotlight and search 'Activity Monitor'. Sort by % CPU. Persistent high CPU from a process you don't recognise is worth investigating — paste the name into a search engine before killing it.

5. Update macOS

Outdated macOS versions can have unfixed bugs that cause slowdowns. System Settings → General → Software Update. If your Mac is too old for the latest version, stay on the most recent point release for your model.

6. Reset SMC and NVRAM (Intel Macs only)

If your Intel Mac is sluggish, has weird fan behaviour or wakes slowly, an SMC/NVRAM reset often fixes it. M-series Macs do this automatically — no manual reset needed.

7. Consider an upgrade

Intel MacBooks with 8 GB RAM and a 256 GB SSD can be transformed with a clean reinstall and storage offloading. If your Mac is older than 2017, however, upgrading the device often makes more sense than further repair spend.

Still slow?

A clean macOS reinstall with full data migration takes us about three hours and is a $89 flat-rate at Repair Point. We do this every week and back it with a 30-day workmanship warranty.