: Disables telemetry backdoors and intrusive data collection features like Cortana and Edge.

The developers of ReviOS focus heavily on gaming. The ISO is optimized to reduce input lag (DPC latency). By removing non-essential system processes, your hardware dedicates more resources to your games rather than the operating system.

The ISO does exactly what it claims. It frees up system resources. However, note that most "gains" come from disabling visual effects and security features, not magic.