Microsoft has announced a major performance update for Windows 11. The company is working on improving its WinUI 3 framework to make the operating system faster, smoother, and more responsive for users. This update is mainly focused on fixing performance issues that many Windows 11 users have reported over time, especially slow loading and delays in basic system apps.
Microsoft boosts Windows 11 performance with WinUI 3 overhaul
According to Microsoft, these improvements are part of a long-term plan to make Windows 11 feel more stable and quicker during everyday use. The company is not only improving how apps look, but also how fast they open and respond when users click or interact with them.
These changes are expected to be included in the Windows 11 version 26H2 update. This update will roll out later, and it will bring several performance improvements across different parts of the system. Microsoft believes these upgrades will help improve the overall user experience and make Windows 11 more efficient on a wide range of devices.
File Explorer and Apps Become Faster
Microsoft used File Explorer and Notepad as main apps to test these new performance improvements. These two apps are very important because most Windows users open them many times during their daily work. So, they are a good way to check how fast the system is working in real use. After the update, File Explorer now opens much faster than before. Microsoft shared that its launch speed has improved by up to 25%. This means users will not have to wait as long when opening folders or browsing files. These improvements come as part of broader Windows updates, including changes like the Windows 11 Run menu redesign.
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The system is also using fewer resources than before. Memory usage has been reduced by around 41%, which means the system does not need as much RAM to run these apps. At the same time, unnecessary function calls have dropped by about 45%, which helps reduce extra processing inside the system. In some cases, Microsoft’s internal tests also showed even better results. Startup time for these apps improved by around 40% to 55%, depending on the situation and device performance. Overall, these improvements make Windows 11 feel faster, lighter, and more responsive. Users should notice smoother performance during normal daily tasks like opening files, folders, and apps.
How WinUI 3 Is Being Improved
WinUI 3 is the main design system that Windows apps use to look and work properly. Microsoft is now working on improving this system from the inside to make it faster and more efficient for users. In older versions, WinUI had some performance issues because it still used design methods from the Universal Windows Platform. These older methods added extra steps before an app could appear on the screen. Because of this, apps sometimes took more time to load or respond.
Now Microsoft is changing this process. The company is making UI elements simpler to handle so they can be processed more quickly. Instead of using slower steps, the system now reduces unnecessary work while loading apps. Microsoft is also introducing ahead-of-time compilation. This means apps are prepared before they are actually run, instead of being processed only at launch. This helps reduce waiting time and makes apps open faster. Overall, these changes help reduce delays, improve speed, and make Windows 11 feel smoother during everyday use, including improvements related to Windows 11 speed test tool.
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Better Tools for Developers
Microsoft is also giving new tools to app developers. These tools help them build faster and cleaner apps for Windows. The system can now remove unused parts of code during build time. This makes apps lighter and faster. Microsoft also plans to share performance data with developers. This will help them compare their apps and improve speed over time.
WinUI 3 updates are part of a bigger plan to improve Windows 11 performance. Microsoft is also testing a feature called Low Latency Profile mode. This feature briefly increases CPU speed for a few seconds to make the system more responsive. Some users have raised concerns about this feature, but similar systems already exist in other operating systems like macOS and Linux.
Microsoft is working on many changes to make Windows 11 faster and smoother. The WinUI 3 overhaul is a major part of this plan. With faster apps, better tools, and system improvements, users can expect a more responsive Windows experience in future updates like version 26H2. News source eTimes Pakistan.

