VanillaFix - Minecraft Optimization and Stability
VanillaFix is a modification that significantly improves performance and fixes various errors in the standard version of Minecraft. Many users report FPS increases of up to three times - you can verify this yourself! Additionally, with VanillaFix installed, the game no longer crashes completely. Instead, you're returned to the main menu where you have the option to upload an error report to a specialized service for easy sharing with developers (you can test this feature by pressing F3 + C in the game).
Demonstration
Crash Screen

Before Optimization (all textures are processed, taking 37% of frame time)

After Optimization (only visible textures are processed, FPS triples)
