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Technology2h 16m ago

Microsoft's new Outlook for Windows 11 takes 10 seconds to display an email after clicking a notification, whereas Outlook Classic does so almost instantly.

Windows 11 platform

Who
Microsoft
What
Microsoft's new Outlook for Windows 11 takes 10 seconds to display an email after clicking a notification, whereas Outlook Classic does so almost instantly.
When
Mon, 15 Jun 2026 05:15:59 GMT · 2h 16m ago
Where
Windows 11 platform ·
Why
The new Outlook is built on WebView2 (a Chromium-based rendering engine), which requires a browser-like process chain to initialize, authenticate, load, and render mail, making it slower than the native Win32 Outlook Classic.
The Frontline Impact

How this affects you

Users of the new Outlook on Windows 11 experience significant delays in accessing emails via notifications, which consumes more system resources and may force them to use the older Outlook Classic for better performance, despite Microsoft's push for the new version.

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