Lagging and crashing

Before this update I wasnt even able to play the game because it crashes every 5 seconds and this update made it worse. I can play the game but everything is so slow and laggy and you deleted my worlds I didnt publish yet and I cant edit worlds either, this update "broke" some of the worlds I made and it sometimes crashes. Please fix this I dont want it closing out on me and I want to edit my worlds and have my unpublished worlds back!

GabbieGabbie about Blocksworld HD