What the Windows 11 Low Latency Profile Is and Why It Matters
The Windows 11 Low Latency Profile is a background feature that briefly pushes your CPU to higher boost frequencies for latency‑sensitive actions, cutting delay when you open core system elements like the Start menu, search, and the Action Center so the desktop feels more responsive and less stuttery. Microsoft has introduced it as part of the optional KB5089573 update, after years of complaints about sluggish Start menu animations and slow app launches on Windows 11. The feature is labeled as a general performance improvement in the changelog, but its purpose is specific: it removes micro‑stutters and short pauses that make the interface feel slower than the hardware it runs on. Low Latency Profile also signals Microsoft’s wider shift away from flashy features toward core stability and performance, especially after earlier criticism of Windows’ AI‑heavy direction.
How Low Latency Profile Uses Short CPU Overclocking Bursts
Low Latency Profile works by driving your processor into short overclocking‑style bursts whenever Windows detects that you are doing something latency‑sensitive, such as pressing the Start button or launching a built‑in app. Reports describe the CPU ramping to maximum boost frequency for about one to three seconds, which dramatically reduces the time between a click and an on‑screen response. According to Windows Latest, the CPU can spike to 100% usage when opening the Action Center, eliminating the Start menu stutter that has frustrated many Windows 11 users. Microsoft notes in the KB5089573 update description that “this update accelerates app launch and core shell experiences such as Start menu, Search, and Action Center.” Because the bursts are so short, early testing suggests minimal impact on battery life, since tasks finish faster and the CPU can return to lower clocks quickly.
What KB5089573 Changes Today—and What It Does Not
KB5089573 is an optional Windows 11 update for versions 24H2 and 25H2 that adds the Low Latency Profile to the system, bringing builds 26200.8524 and 26100.8524 to more PCs. Right now the feature focuses on core Windows elements: the Start menu, search, Action Center, notifications, and other built‑in tools such as Microsoft Edge. That means third‑party apps do not yet benefit from the same CPU boosting logic, though Microsoft has confirmed broader support will arrive in a future update to the Windows 11 Low Latency Profile. The package also includes unrelated improvements like Shared Audio for two Bluetooth headsets, better Task Manager NPU reporting, and camera feed sharing across multiple apps. For many users, though, the headline change is the Windows 11 performance fix that finally makes native shell interactions feel fast instead of sticky or delayed.
How to Get and Enable the KB5089573 Update Safely
Because KB5089573 is an optional update, you must install it manually through Settings rather than waiting for automatic updates. Go to Settings, open Windows Update, then Advanced options, then Optional updates, and download the preview update labeled KB5089573 (or the matching build number, such as 26200.8524). On eligible systems, Microsoft is rolling it out gradually, so it may not appear immediately in every region or on every device. For now, some users report that Low Latency Profile is present but disabled by default, with no visible toggle in Windows settings. Enthusiasts can force‑enable it with the third‑party ViVeTool utility from its GitHub repository, though this involves command‑line steps and may not be ideal for casual users. Microsoft says that once the feature reaches general availability, it will run in the background and be on by default for all PCs.
A Quiet Admission: Microsoft Confronts Windows 11’s Performance Problem
Low Latency Profile is more than a minor tuning tweak; it is Microsoft’s clearest acknowledgment that Windows 11 has had a long‑standing performance problem. Users have complained for years about Start menu lag, delayed search, and a general feeling that the shell is slower than Windows 10 on the same hardware. As MakeUseOf notes, Microsoft has begun a wider effort—codenamed K2—to rebuild core Windows components for better optimization, and Low Latency Profile is one visible result. Some critics argue that briefly overclocking Windows CPUs is a shortcut that hides deeper inefficiencies, while others welcome any change that makes everyday interactions smoother. Microsoft’s Scott Hanselman has responded by pointing out that “all modern operating systems do this” style of short CPU boosting, and that competitors like Apple use similar techniques to make their interfaces feel instant.
