FPS Drops in Forests and at 10+ Chunk Render Distance on Android

I’m experiencing severe FPS drops when playing Minecraft Pocket Edition (MCPE) on Android, especially when using higher render distances and near dense forest biomes.

Device: iQOO Z9

Android Version: Android 15

Minecraft Version: 1.21.81

RAM: 6 GB

OpenGL Version: ES 3.2

Game Recommended Render Distance: 12 Chunks

Tested Render Distances:

10+ chunks: Lag and frame stutter, especially in forests

7 chunks or below: Smooth performance