Microsoft new Outlook takes 10 seconds to do what Outlook Classic does instantly
6 hours ago
- #Windows 11
- #WebView2
- #Outlook
- New Outlook for Windows experiences slow notification handling, taking up to 10 seconds to open specific emails from notifications compared to Classic Outlook's instant response.
- The new Outlook is built on WebView2, a web-based architecture that causes high resource usage (490-636 MB RAM idle, 4% CPU) and slower performance due to multiple processes, unlike Classic Outlook's single process (117-148 MB RAM idle).
- Microsoft has acknowledged performance issues and delayed enterprise migration deadlines, but limitations are inherent to web apps, with possible future solutions including a native WinUI version.
- Despite improvements like faster launch times, offline access, and new features (e.g., unified inbox), the notification problem persists, making Classic Outlook a more reliable choice for productivity until at least 2029.