Vim is slow when editing files over samba

I have a windows host running ubuntu in vmware. I set up ubuntu to export a samba share so that I could use gvim on windows. When editing files over this connec开发者_如何学运维tion visual mode gets really slow. I have also noticed bufexplorer gets slow during this time too. Neither of these are slow when I am editing files on the windows host.

What can I do to improve performance?

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The first thing I would try is setting the directory option (see :help directory) to a local directory. That way all the swap file operations won't go over the network.