Microsoft's Outlook for Windows is facing criticism for its notification handling, particularly in the new Outlook version built on the WebView2 framework. Users experience a delay of approximately 10 seconds when clicking on email notifications, compared to the near-instantaneous access provided by Outlook Classic, which allows users to open new emails in about five seconds. The new Outlook consumes significantly more memory and CPU resources, using between 490 MB and 636 MB of RAM, while Outlook Classic operates within 117 MB to 148 MB. Despite updates aimed at improving the new Outlook, the core issue of notification handling remains unresolved. Microsoft is working on enhancements, but the performance limitations of the WebView2 architecture continue to affect user experience. Outlook Classic will continue to be supported until April 2029.