Windows 11 26H2 quietly shipped with a major performance boost, and here's why

Key Points:

• Windows 11 26H2 is an enablement package that consolidates months of performance improvements, including the Low Latency Profile feature, which boosts responsiveness by pushing the CPU to higher frequencies briefly during UI interactions and app launches.
• Many users report significantly reduced RAM usage after updating to 26H2, with some seeing decreases of up to 2GB on systems with 16GB or more, resulting in smoother multitasking and lower memory pressure during heavy workloads.
• The Low Latency Profile and other optimizations like a faster File Explorer and improved memory management contribute to a snappier overall experience, although Microsoft has not officially confirmed RAM reductions as part of 26H2 changes.
• Despite these improvements, memory usage improvements vary by system configuration and workload, and some users with 8GB RAM or less see minimal change, indicating ongoing optimization efforts are still in progress.
• Microsoft’s broader performance work throughout 2026 focuses on memory manager enhancements, WinUI fixes, and better app efficiency, but third-party apps remain a challenge for overall system resource usage.