Bazaar Explorer freezes - how to fix?

[David Roth]

We are using bazaar and bazaar explorer to manage a quite large working
tree with 8786 files, 67M Branch-Size and over 7200 commits.

We are quite happy with the usability and simplicity of bzaar explorer, but
unfortunately we have major problems with lots of gui freezes in bazaar
explorer. The freezes take several minutes and most of the times i have to
kill the 100% bzr processes in the process explorer and restart bazaar
explorer to get my things done.

I have already browsed the bug tracker and it may be due to this bug:

https://bugs.launchpad.net/bzr-explorer/+bug/582838

Unfortunately there has not been any progress on this bug so far.

Is there anything i can do (logging, debugging, ...) to find out why bazaar
explorer freezes on my machine or are there some workarounds to avoid these
freezes?
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