https://www.magiskmodule.com/nexus-tweak/

Feel an instant boost in your Free Fire performance right after it’s installed. Achieve higher, more stable FPS so the action stays fluid, especially in crowded areas. Drastically reduce lag and stutter for consistently smoother gameplay. It optimizes your CPU & GPU to prioritize the game over everything else. Improves overall device responsiveness, so your commands register faster in a firefight. Acts as a smart background task cleaner for better game stability. Enhances graphics rendering to push out frames faster and more efficiently. Lowers heating issues so your phone can maintain peak performance longer. It uses auto-tuning to adjust settings for the optimal gaming experience on the fly.