Fix Outlook if It’s Running Slow in 4 Steps

Check the most comprehensive tips to boost Outlook’s performance

3 min. read

Updated onFebruary 29, 2024

updated onFebruary 29, 2024

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Key notes

Let us explore Outlook and help you fix issues connected to the service running slow. Outlook has performance issues caused by a corrupt or damagedPST file, an add-in that isn’t functioning, a corrupt profile, or a problem with the Outlook application.

This article presents all you need to know to resolve these issues.

How does the Windows registry get corrupted?

WhenOutlook 365 is running slow, it could be the installed add-ins to blame. To verify, run Outlook in Safe Mode, and if the performance improves, remove the non-critical add-ins.

Also, Outlook could be slow when recent updates and patches are not installed. Running an outdated version of any app can cause issues with both performance and security.

Besides, a corrupt or damaged Outlook profile, and third-party conflicts, usually from installed antivirus, can be behind Outlook 2016 running slow.

How do I fix a slow Outlook on Windows 10?

We also encourage you to check the network connection and verify that you are receiving a decent speed.Slow Internet speedis a common underlying cause of Outlook issues.

Also, if you would rather skip fixing Outlook, you may try other options. For example, we recommend looking into the best Windows 10 email client apps because they provide plenty of valuable features.

That’s it! By now, you should have Outlook running again, and it won’t be slow anymore. However, for more official solutions, check out whatMicrosoft’s support page for Outlook performance issues.

Why are my emails slowly coming through?

There are a few reasons you mayencounter delays in receiving your emails. On top of the list are the following:

In most cases, you may not be able to do much about the delays; for example, the sender and recipient client may have a fixed interaction period spanning a few seconds to some minutes.

You may have to wait it out.

How long does it take for Outlook to send emails?

When Outlook is online and linked to a network, emails will be sent immediately after you click Send. Likewise, emails will be sent when the following Outlook is online if you send them when the service is offline.

The solutions below will work for the following error variations:

The fixes above would come in handy if Outlook is having slow synchronizing, is slow to open emails, receive emails, send emails, or load emails. You will also find them convenient if Outlook is slow and not responding.

Repairing Microsoft Office will fix issues that can cause it not to function properly likeOne or more items in the folder you synchronized do not match; read this guide to learn more.

Were you able to fix Outlook running slow in Windows 10 using the solutions above? Let us know in the comments section below.

Fix Outlook if It’s Running Slow in 4 Steps#

How do I fix a slow Outlook on Windows 10?#

Fix Outlook if It’s Running Slow in 4 Steps

How do I fix a slow Outlook on Windows 10?