Game Acts Up

Ever since the most recent update the game has been running really bad. It won't let me sleep, the furnaces smelt really low, blocks are really laggy, it takes awhile to pick up an item, and building and mining both has become a pain. I haven't been able to play much, I haven't played in awhile because it's acted up so bad to the point I don't enjoy playing it. Please please please fix this soon, I would like to continue to enjoy the game!