To enhance the performance of an aging Android device without rooting, follow these steps:
1. Delete unused apps by navigating to Settings > Storage > Apps.
2. Clear additional storage by offloading photos to an external drive or cloud storage and clearing app cache via Settings > Storage > App > Clear Cache.
3. Check for updates by going to Settings > General > System Update and updating apps through the Google Play Store.
4. Adjust animation speed by enabling Developer options (Settings > About phone > Tap on Software information > Tap Build number seven times) and modifying the Window animation scale to 0.5x, along with Transition animation scale and Animator duration scale for improved responsiveness.