
Therefore, you should remove the unused/faulty add-ins and only keep the essential ones that you frequently use.Īlso, to know if a particular add-in is causing the issue, disable the add-ins one by one until you find the problematic one. And if it works as expected, the add-ins are probably faulty. To know if add-ins are causing issues, you can even run Outlook in safe mode. Remove Add-InsĪdding too many add-ins can slow down the Outlook app and thus result in your messages loading too slowly.įurthermore, some add-ins might be corrupt or incompatible and cause issues by interfering with the app. If Outlook continues to load slowly, you can go through the following fixes. On the other hand, make sure your network connection isn’t slow and is stable. So, try disabling the firewall temporarily and see if it solves your problem. Regardless, enable it as soon as possible to protect your system from various threats and malware.


Outlook mailbox almost full or running out of storageīefore you move on to the technical fixes, check if your system meets the minimum requirements to use Outlook on your system.Īlso, the antivirus software can sometimes have false negatives and interfere with the Outlook app.

While multiple factors can lead to this issue, some of the most possible ones are as follows.
