Dai Sein Booster is a lightweight, rootless utility that tunes core Android system properties for high-end gaming. Utilizing the Shizuku API, it eliminates micro-stuttering and sudden frame drops by managing background processes and display limits, ensuring sustained peak performance without requiring root access.

Technical Overview of Dai Sein Booster

This utility bypasses standard permission restrictions via the Shizuku API to directly modify low-level Android configurations. It applies AOT (Ahead-of-Time) speed compilation to target app code and overrides standard ActivityManager behaviors to prevent the termination of background game tasks. Additionally, it forces the device's peak and minimum display limits to a fixed 120Hz while expanding RAM cache limits to 60.

Core Features of Dai Sein Booster

AOT Speed Compiler pre-compiles target app code directly into native machine execution speed to prevent micro-stuttering.
120Hz Refresh Lock forces display peak and minimum refresh rates to 120Hz to avoid sudden FPS drops during gameplay.
Phantom Process Killer disablement prevents the Android ActivityManager from abruptly terminating background game tasks.
RAM Cache Expansion increases background process limits to 60 to allow multi-tasking without cache flushes.

Compatibility & Quick Setup

Requires Android 7.0 or newer — install the APK and grant ADB permissions via an active Shizuku service.