Fix Mac Calendar Very Slow after macOS Monterey Upgrade

Last Updated on Nov 22, 2021

Apple’s Mac calendar is the most widely used App in the entire Mac system. It can sync to non-apple app services and Caldev servers also. Moreover, it can smoothly run on any Mac notebook as well as a Mac desktop. But recently, feedback, macOS calendar runs slow after Monterey upgrade.

we are happy to help you, submit this Form, if your solution is not covered in this article.

Here I have some hacks that will boost Mac calendar speed doesn’t matter the macOS version. Let’s follow the steps to fix the Mac calendar not loading that is stuck on the spinning wheel;

Calendar very slow with macOS Monterey

Step #1. Delete the com.Apple.ical.plist

Follow the bottom steps to find the delete com.Apple.ical.plist path

Step #1. Open Finder on your Mac
Step #2. Click Go on top menu
Step #3. select Go to Folder from the drop-down list
Step #4. Choose /Library/Preferences/
Find com.Apple.ical.plist file using search bar
Step #5. now right-click on that file and choose a move to bin.

After deletion of com.Apple.ical.plist file, restart your Mac, and try again to use the calendar App. I hope this is found helpful like a charm. if not work for you. go to the next solution.

Solution#2. Safe Mode on Mac Monterey

Have you installed or run any “cleaning” apps (for example; Software Ambience Daisy Disk 4, Titanium Software Onyx 3.9.7, Piriform Software CCleaner 1.18.30), “optimizing” tools such as (CleanMyMac X), “speed-up” software, Mac anti-virus, or VPN apps on your Mac?

I suggest that you boot your Mac into Safe Mode according to Startup your Mac in safe mode and try again to see if the problem persists. Then Reboot normally and test again.

What happens in Safe mode to my Mac? Bottom-listed points denote that how does mac safe mode works?

NOTE: if you run your Mac into Safe Mode boot, it can take up to 3 – 5 minutes cause it attempt bottom given steps;

• Verifies your Mac startup disk and attempts to repair directory issues, in case of need

• Loads only required kernel extensions (prevents 3rd party kernel/extensions from loading)

• it stops Startup Items and Login Items from launching automatically

• Disables fonts that are installed by Mac administrator

• Safe mode Wipes font caches, kernel cache, and other system cache files on your Mac

Solution #3. Repair Your Mac Drive-in Recovery Mode

to learn about how to repair mac drive in recovery mode, click here to get depth information.

Solution #4. Re-install macOS Monterey 

Above all techniques followed, but none of the workarounds worked; let me know you; the final solution is re-install macOS to get your Mac like a refresh mac operations system.

jaysukh patel

Jaysukh Patel is the founder of howtoisolve. Also self Professional Developer, Techno lover mainly for iPhone, iPad, iPod Touch and iOS, Jaysukh is one of responsible person in his family. Contact On: [email protected] [OR] [email protected]

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