There are several reasons why Outlook can be too slow. This causes it to take longer than necessary to display the available mail in the inbox or to exercise part of its functionalities with ease. That is why today we are going to review three fundamental reasons that we must take into account if we notice a loss of performance of the Microsoft mail manager.

Problems with the Internet connection

That Microsoft Outlook is running too slow may not be entirely a problem with the program itself, but may also be caused by our own Internet connection. If we have a connection that is too slow or problems with the signal, it can lead to Outlook not being able to run efficiently, thus obtaining performance problems. That is why it is convenient that we check our connection, restarting the router if necessary to try to make the connection as stable as possible and check in this way if Outlook already works correctly.

4 reasons why Microsoft Outlook is very slow

Non-essential or obsolete add-ins installed in Outlook

Another reason why Outlook is slower than usual is that we have non-essential or obsolete add-ons installed, so it is recommended that we uninstall them. To do this, we must click on the “File” tab and click on “Options”, and then on “Add-ons”, to see a list of all installed COM add-ons. To determine if the performance problem is due to the drivers, we must run Outlook in safe mode, holding down the Ctrl key when starting Outlook. This disables COM add-ins, so if the problem disappears, it is likely that it is being caused by one of the add-ons.

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Too many RSS feeds in Outlook

One of the most annoying features of Outlook is the amount of RSS feeds with which it comes preconfigured and that constantly feed resources due to their permanent synchronization, which can cause our download manager to go slower than desired. For this reason, unless necessary, it is convenient to remove RSS feeds from Outlook. To do this we go to “Files” and click on “Account Management” and then on RSS to empty all the content that we do not need.

Large OST and PST files

One of the most common reasons for poor Outlook performance is due to large OST and PST files. If this is the case, we may notice how typical operations such as reading, moving or deleting emails are performed more slowly. And it is that after using this mail server for a while it is normal that we have accumulated a lot of information in a single PST file, exceeding the maximum capacity of the server, so that our mail will begin to fail and with this, we will obtain a slower operation. Starting at 10 GB in size for a PST file, we may start to notice short pauses, especially during email downloads.