Note: This is only applicable to Office 2019 and Office 2016. Outlook stores all the data in the PST file, if the file size is enormous, then it could slow down the loading process. Apart from loading, it also increases the time taken for reading, moving, and deleting email messages.
The User App. Data folder is one location where Outlook stores certain data. If the App. Data folder is set to a network location and the network has an issue, it will result in a slow loading time of Outlook. It is always a good idea to set it to a local folder on the same computer.
You should be asking “Why are my outlook emails slow to load and send?”
An incompatible or faulty Add-In may also cause Outlook Slow & delay in receiving and loading Outlook emails and attachments. Follow these steps to find the faulty Add-in and disable or uninstall it.
Outlooks uses the profile settings to open the email accounts for the logged in user. Sometime this profile might get corrupted causing long time to start Outlook. In such case, you will see the message ‘ Profile Loading’ when opening Outlook application.
Why does outlook take so long to update messages?
This usually happens when in the mail box we have a lot of information, since outlook is synchronized every 4 GB, this has the consequence that outlook is slow to update the messages. To try to solve this, I recommend you follow the steps below.
Why are my emails so slow to open?
Check the emails are opening faster and you can able to send and receive messages. If Outlook works faster in safe mode then it’s an indication that additional add-ins causing the slowness. Note: If ‘outlook /safe’ does not work, try ‘outlook. Exe /safe’ or provide the correct installation path for the Outlook on your computer.
Why does outlook run slower when logging is turned on?
Cause: Outlook might run more slowly if logging is turned on. Solution: Turn off logging in Outlook. Logging is a diagnostic tool primarily used by support professionals to help troubleshoot Outlook issues.