Android Responsiveness & Battery Optimization -- 2

My Android phone feels sluggish whenever I jump between apps, especially social media feeds and the two games I play daily. I’d like someone who truly understands low-level Android tuning to help me squeeze faster, smoother transitions out of the system without sacrificing battery life.

Here’s what I need from you:

• Diagnose the root causes of the noticeable lag that appears while app-switching and trim whatever processes, animations, or kernel parameters are getting in the way.
• Apply tweaks—whether that’s governor settings, background service limits, adb commands, or lightweight scripting—that boost overall system responsiveness while keeping power draw in check.
• Verify that your changes improve launch-to-launch switching time for TikTok, Instagram, and my two Unity-based games, and that standby drain stays the same or drops.

Please document every step so I can re-apply the setup after future updates. If you plan to use any software or need root access, let me know upfront; my device is already unlocked and I can flash Magisk modules if required. A short before/after screen recording or benchmark to show the gain will serve as final acceptance.