When one of my vim subwindows is opened to a network drive with many zip files, switching to that subwindows causes vim to hang for 10 seconds or so. The Windows Task Manager shows sustained increased bandwidth usage during that time, so I assume that netrw is reading the list of files within each zip file. I am in a very controlled computational setting, so upgrading is not easy. Is there a quick vim source code patch that alleviates this delay? I am currently on netrw v149, installed as part of Cygwin on Windows 7.