OptiFine is a Java Edition mod that optimizes performance and adds shader support, zoom, dynamic lighting, etc. It cannot run on MCPE/Bedrock because Bedrock uses a completely different codebase (C++ vs Java).
Tap or double-click the file. Minecraft will launch automatically and say "Import Started." Optifine V4 For MCPE 1.20
Installing this optimization pack is straightforward and does not require "rooting" your device. OptiFine does not officially exist for Minecraft: Pocket
While OptiFine V4 offers significant improvements, there are limitations to its capabilities: Limitations and Future Work: While OptiFine V4 offers
: One of the standout features of Optifine V4 is its visual enhancements. With support for higher render distances, more detailed textures, and improved lighting effects, the game looks more vibrant and immersive than ever. Players can explore more expansive worlds without sacrificing performance.
A simple behaviour pack that adds the Optifine zoom to a hotbar slot. It doesn't boost FPS, but it provides the signature zoom feature without any lag.