Fix the Crashes!

Ive been playing minecraft for a long time now and I havent had a lot of problems back then but 1.1.4 keeps crashing! It takes 3 minutes to run around before I crash. I heard alot of people tend to crash a lot in 1.1.0 and up. Please fix this problem soon because some people cant able to play the game right without crashing!

???????? about Minecraft: Pocket Edition, v1.1.4