Torches and hotbar and lags Minecraft 1.2.1 pocket edition

1- The Hotbar In 1.2.1 Is So Laggy Like If I Have Something And I Craft Something Else I cant put it in my inventory until I just quit the hotbar

2- Torches Are So Laggy There Is Shadows! Please Look At The Photos

3- All The Time I Join In Servers With My Xbox Live It Says You Can’t Play Online But I Can! It Lags So I Remove My Account Then Put It Back It Works After 3 Plays the same thing happens

4- Lag When i’m Playing LAN Games (Me And Somebody Using Same WIFI) It Lags A Lot I Can’t Play Minecraft If So

Please Fix IT!!!