Comment 1 for bug 457789

So, this is packing over the network - which is slow :)

bzr auto packs after a cross-format push that did data conversion; however this should happen on the server if the conversion streamed.

Its possible bzr-git doesn't support getting a stream, or that it interferes with the use of streaming, meaning that pushes from git to bzr will be using VFS access and thus pack directly (as this has).

Can you look in your bzr log for the 'packing ...' line, which has the repository types, and paste that in here?