If your MacBook Pro 14-inch M5 is feeling sluggish, it's a frustrating experience on such a powerful machine. The good news is, a few targeted checks can usually get it running smoothly again. Let's start with the simplest and most effective step.
Restart Your Mac
It sounds basic, but it's incredibly effective. If you've been closing the lid and using sleep mode for weeks, background processes and memory can get gummed up. Click the Apple menu in the top-left corner and select Restart.
This gives your system a clean slate. For a more forceful restart if the system is unresponsive, press and hold the power button for about 10 seconds until it shuts off, then press it again to turn it back on.
Check What's Hogging Resources
Open Activity Monitor from your Applications > Utilities folder. This is your mission control for seeing what's happening under the hood.
Click the CPU tab and sort by "% CPU" to see what's using the most processor power. Then, check the Memory tab to see your RAM pressure. If the graph at the bottom is yellow or red, your Mac is working hard to manage memory.
If you spot an app using an excessive amount of CPU, you can select it and click the stop sign icon to force quit it. You can also use the keyboard shortcut Option + Command + Esc to bring up the Force Quit Applications window directly.
Free Up Storage Space
macOS needs free space on your SSD to operate efficiently, especially for virtual memory and caching. Click the Apple menu > About This Mac > More Info and then click Storage Settings.
Here, you can get a clear breakdown of what's using space. I'd recommend enabling Optimize Mac Storage to automatically offload older files you don't often use to iCloud. Also, take a few minutes to clear out your Downloads folder and empty the Trash.
Manage Startup and Background Apps
Too many apps launching at login can slow down your boot time and drain resources in the background. Go to System Settings > General > Login Items.
Review the list under "Open at Login." Remove any apps you don't need immediately upon starting your Mac by selecting them and clicking the minus (-) button. This simple step can make a noticeable difference in how snappy your Mac feels right after you turn it on.
Install the Latest macOS Updates
Apple regularly releases updates that include performance improvements and bug fixes. Make sure you're running the latest version of macOS 26 Tahoe.
Go to System Settings > General > Software Update. If an update is available, install it. These updates often address specific performance quirks that can develop over time.
Adjust Display and Motion Settings
The stunning ProMotion display on your MacBook Pro is fantastic, but its high refresh rate and visual effects can sometimes contribute to a perceived slowness or flicker with certain content. You can tone down some of these effects to free up GPU resources.
Head to System Settings > Accessibility > Display. Try turning on Reduce motion and Reduce transparency. This simplifies some of the visual animations and effects, which can make the interface feel more responsive.
Be Mindful of Browser Tabs and Extensions
Modern web browsers are powerful, but each open tab and extension consumes RAM. If you're someone who keeps dozens of tabs open across Safari or Chrome, that alone can be a major source of slowdown.
Make a habit of closing tabs you're done with. Also, review your browser extensions and disable any you no longer use, as poorly coded extensions can significantly impact performance.
Let Spotlight Finish Its Job
After a major macOS update or when you add a new drive, Spotlight will re-index your files. During this process, you might see higher CPU usage from processes named "mds" or "mdworker" in Activity Monitor.
This is temporary. The best thing to do is let it finish, which could take a few hours depending on how much data you have. You can check if it's still indexing by clicking the Spotlight magnifying glass in the menu bar; if it says "Indexing," just be patient.
Run Apple Diagnostics
If you've tried the software fixes and things still feel off, it's worth checking for underlying hardware issues. Shut down your MacBook Pro completely.
Turn it on and immediately press and hold the power button. Keep holding until you see the startup options window, then release. Press Command (⌘) + D on your keyboard to start Apple Diagnostics.
This built-in tool will test your Mac's hardware and report any problems it finds. It's a good way to rule out a failing component, especially if the slowness is accompanied by other strange behavior.
