Cursor/pointer becomes slow/sluggish in MacBook Air

Welcome and thank you for reaching out. 🤗

If you have any antivirus software installed, then remove it A.S.A.P. as they interfere with the system operations and performance.

If you don’t have anything like that installed, then try the following:

First, let’s see if this issue happens in Safe Mode:

1. Shut down your Mac.
2. Press and hold the power button on your Mac. As you continue to hold the power button, your Mac turns on and loads startup options. When you see Options, release the power button.
3. Select your startup disk. It's named Macintosh HD, unless you changed its name.
4. Press and hold the Shift key, then click the “Continue in Safe Mode” button below your startup disk.
5. Log in to your Mac. You might be asked to log in again.

If the strange behaviors do not occur, then it may possibly be a software issue.

If the issue doesn't continue in safe mode:

Leave safe mode by restarting your Mac normally, then try to reproduce the issue.

If the issue doesn't return, it might have been resolved by the other things that safe mode did at startup, such as checking your disk and clearing caches.

If the problem persists, then let’s try this:

• Software Update.
• Use Apple Diagnostics to test your Mac.

Need more help?

• United States: 1-800-APLCARE.
• Contact Support.
• Mac Support.
• Mac User Guide.

Good luck! 👋🏼😉

Smiliñ 😎 Brian | Community Volunteer

accudin wrote:

USB C

Thanks for confirming you're using a USB-C charger with your 13-inch MacBook Air running macOS 15.8.

If the cursor becomes sluggish only when charging, try these quick fixes:

1. Check the charger and outlet: Unplug the charger and see if the cursor returns to normal. Try a different wall outlet and, if possible, another compatible USB-C charger and cable.
2. Test your pointing device: If you use the built-in trackpad, test it while charging and on battery. If you use a wireless mouse, toggle Bluetooth off and on. To test with a wired mouse, connect it directly to your MacBook's USB-C port using a compatible adapter if needed. Compare its cursor movement with the charger unplugged and plugged in.
3. Restart your Mac: Reconnect the charger and check whether the problem returns.
4. Check for updates: Go to System Settings >> General >> Software Update.

Two quick questions:

• Does the problem affect the built-in trackpad, an external mouse, or both?
• Are you using Apple's original charger or a third-party one?

Your answers will help narrow down the cause.

"Cursor/pointer becomes slow/sluggish in MacBook Air: The cursor/pointer becomes very sluggish when connected to power in my MacBook Air. Can someone help me overcome this problem?"

-------

Lagging Cursor While Plugged In:

What happens when you use a hardwired mouse? What happens when you use a Bluetooth mouse. See if they operate faster.

Open Disk Utility and View Remaining Storage:

See how much data remains on your hard drive. Probably not an issue, if it done occur while not plugged in, but, your Mac will lag, ultimately leading to stalling, when you get close to using up your storage. Keep 40% full.

1. Click: The Desktop
2. Go to: Go menu
3. Select: Utilities
4. Select: Disk Utility
5. Click: your container (on the left pane; expand the caret, no seen)
6. View: Free
7. View: the Storage Bar

Writing an effective Apple Support Communities question

Reliable , accurate, details / context will really help

There is very little actionable information supplied in order to determine if this is a Builtin Trackpad Issue, External Bluetooth Mouse Issue, External Wired Mouse / Trackpad, External Bluetooth Trackpad that is not working .

What has the User ( you ) done to try and fix this issue.

We would not want to offer that which you have already tried

Which power supply cable are you using? USB-C or MagSafe?

"I could not follow what you have mentioned. Kindly guide me"

-------

Lagging Mac:

"Open Disk Utility and View Remaining Storage:". With little Disk Space remaining, it will most certain slow down.

Have Upto 40% RAM Used RAM:

As for multitasking --that is what RAM (memory) is all about.

1. Click: The Desktop
2. Go to: Go menu
3. Select: Utilities
4. Open: Activity Monitor
5. Click: Memory tab
6. Select: Memory tab in descending order (greatest to least)

On the Bottom:

1. View: Physical Memory
2. View: Memory Used
3. Subtract: [Memory Used from Physical Memory], and you'll see how much remains. I'd say keep it 40% full at MAX.
4. 

USB C

I could not follow what you have mentioned. Kindly guide me

I have not installed any anti virus software on my MacBook Air. The cursor/pointer problem arises only when the laptop is connected to power

Owl-53's recommendations are applicable, and those two questions are just as important. Use genuine Apple components (input devices, power adapters, cables) whenever possible.