Since I've upgrated to the version 2.1 of sourcetree, everything is very very slow. And I'm not the only person who struggles with this problem. All my friends, whom I've asked, have the same problem as me. I've now upgrated to the latest version 2.1.2.5 and it's even worse than before. And there is also another problem: Sometimes the uncommited files disappear and I have to refresh sourcetree, to see them.