I've just uploaded a new release of Bunjalloo. This contains all the performance improvements I've been working on recently as well as a few other changes. Full details are in the changelog.
One of the changes is a fix to the updater. Sadly I broke it in the last release. This means you will have to update manually by downloading the zip file and unpacking it to your flash card. I've added some automated tests during this release to make sure I don't mess it up again.
You can download the latest version here.