For example, recently I've experienced slowdowns due to the installation of a third party templating add-in.ģ) Does your system have antivirus software installed? If so, any chance you could temporarily disable it just to start one of the affected Office apps to see if this improves things? Please note the temporarily part, and while it's disabled, only try running Office apps and re-enable it as soon as possible.The Outlook Search Repair tool displays a 'Reindexing, please wait' message while it works. There's been numerous bug fixes, including fixes of known performance issues.Ģ) Do you know if there's any add-ins installed and/or pushed via central deployment in Microsoft 365? Such add-ins may cause slowdowns as well. If all else fails, see if you can reach out to Microsoft Support.ġ) Any chance you can update to the latest version of macOS Big Sur (11.5.2). From personal experience, I am currently running Office on a M1 MacBook, completely up to date macOS, and there's zero slowdown right now. Generally this type of issue is difficult to troubleshoot as it can be so many things.

Any advice would be hugely Just to rule out a bunch of things and some random things to try. My Mac is just over a year old - 3.2 GHz 6-Core Intel Core i7, 16 GB ram. I’m running the latest version of Office and my Mac is running Big Sur 11.2.3. It's usually runs a little quicker after doing this, but over time, starting Microsoft apps becomes progressively slower so I need remove and re-install again. I've completely removed Microsoft apps and re-installed loads of times.

It's sooooo annoying and I often just leave the mac running without shutting down.

My mac is high spec and everything else runs great, even resource intensive programs such as Adobe run fast.

It must be something to do with the sign in. I'm signed into to two 365 accounts - my main account is my personal, but I'm also signed in with my work account for OneDrive, Teams and Outlook. If I quit the Office app and then immediately start the app again, starting will only take a couple of seconds. This is only the case after having shut down the Mac. My Office apps for Mac (especially Word and Outlook) take a very long time to open – sometimes it can take more than 10 minutes to open Outlook!

Run rule microsoft outlook mac