microsoft has started rolling out the update KB5089573 for windows 11 versions 24H2 and 25H2, which introduce the Low Latency Profile (LLP) function.
The update is primarily a performance improvement aimed at speeding up app launches and core shell experiences, including the Start menu, Search, and Action Center.
Microsoft reports that LLP can deliver up to 70% faster drop-down menus and reduce application launch times by 40%. This update is part of Windows K2, Microsoft’s ongoing effort to address long-standing performance issues in Windows 11.
How the new Windows 11 low latency profile works
LLP briefly increases the CPU clock speed when Windows detects an interaction that might otherwise appear slow. Instead of gradually increasing the processor speed, Windows applies a short burst of maximum frequency lasting between one and three seconds, allowing the task to complete before returning to normal operation.
Microsoft describes LLP as a standard part of the behavior of modern operating systems. Similar techniques are already used in macOS, Linux, and mobile operating systems to keep face-to-face user interactions responsive.
This feature is aimed at specific scenarios where slower performance is most noticeable, such as opening the Start menu, activating Search, launching applications, or opening drop-down and contextual menus.
Other KB5089573 changes and how to get the update
The update includes several additional changes:
- Improved Task Manager visibility for NPU usage
- Windows Hello settings
- Search results are displayed after typing just two characters.
- Reliability improvements for File Explorer
- Reliability improvements for USB devices
- Reliability improvements for login screens
KB5089573 is currently available as an optional update. To install it manually, open Settings, then go to Windows Update and Advanced Options. Click Optional Updates and select KB5089573 to install.
These updates are expected to be included in the upcoming Patch Tuesday security release, reaching a wider audience.
Why the low latency profile may not activate immediately and how to force it
Microsoft is rolling out LLP gradually through a controlled process. Installing KB5089573 does not ensure that the feature is enabled. Some users may receive the update without Microsoft enabling the feature. There is no dedicated switch in Settings for LLP. Once Microsoft enables it by default on a device, it runs in the background without any user action.
Users who want to enable LLP right away can do so using ViveTool, an unofficial method that is not supported by Microsoft. To get started, install KB5089573 via Optional Updates, then download ViveTool and extract it to a folder like C:\ViveTool.
Open the command prompt as administrator and run the provided commands.
After restarting the PC, LLP should be active and running in the background. Since ViveTool is a community-driven tool and not endorsed by Microsoft, users should consider the balance between immediate access and waiting for the official release.
The update is currently available for eligible Windows 11 24H2 and 25H2 devices.
