Microsoft deploys low latency CPU profile in Windows 11 to boost responsiveness
Microsoft is rolling out a new low latency profile in Windows 11 test builds that temporarily spikes CPU speed to accelerate app launches and UI animations. While critics argue the strategy relies on hardware rather than software optimisation, the company maintains that short bursts of power via the "race to sleep" mechanism ultimately save energy and improve performance, a technique already standard in macOS and Linux.
Microsoft is introducing a new low latency profile within Windows 11 test builds designed to address long-standing user complaints regarding system responsiveness. The feature temporarily boosts CPU speed specifically for interactive tasks, such as launching applications, animating the Start menu, and opening File Explorer. Early testing by Windows Central indicates that this profile delivers a noticeable increase in speed and responsiveness compared to the current public version, known as 25H2.
The strategy has drawn criticism from some users who believe relying on hardware bursts undermines software optimisation and could negatively impact battery life. In response, Microsoft and GitHub Vice President Scott Hanselman have defended the approach, stating that modern operating systems, including macOS and Linux, utilise similar techniques to prioritise interactive tasks and reduce latency. Hanselman noted that the practice is not "cheating" but rather a fundamental method for making applications feel fast in contemporary computing environments.
Central to Microsoft's defence is the concept of the "race to sleep". The company argues that allowing processors to consume high levels of power in short bursts enables them to complete tasks quickly and return to a low-power state more efficiently than running at a reduced power level for a longer duration. This mechanism is designed to improve system responsiveness while potentially reducing overall energy consumption, a principle that applies to virtually all modern processors.
Beyond the low latency profile, Microsoft is publishing specific updates on the Windows Insider Blog to track progress on its "Commitment to Windows Quality" items. These efforts include scaling back Copilot branding in core applications such as Notepad and Paint, decluttering the Widgets board to reduce RAM usage, and refining the Windows Insider Program to make the testing process more predictable for users.
These performance enhancements arrive as Microsoft intensifies its push to migrate users and businesses away from Windows 10. According to StatCounter data, Windows 10 still runs on over a quarter of the world's Windows PCs. With the conclusion of the free extended security updates drawing near, the company is urging users to upgrade or purchase new hardware that meets Windows 11 system requirements to remain patched and secure.
