Microsoft is currently testing a new speed boost feature in Windows 11 that is designed to improve app launch times and make things like the Start menu feel more responsive. The feature, which is reportedly called "Low Latency Profile," will ramp up CPU frequency in short bursts to improve the speed of menus, flyouts, apps, and more - much like how macOS handles similar tasks.
Windows 11 testers have been trying out the new unannounced feature over the past week, and noticing significant speed improvements launching File Explorer or the Start menu, as well as apps like Outlook, the Microsoft Store, and Paint.