I implemented the changes that I sketched in my previous comment and implemented them in https://code.launchpad.net/~initos.com/openobject-addons/7.0-715444-webdav-performance-improvement/+merge/200288
I implemented the changes that I sketched in my previous comment and implemented them in https:/ /code.launchpad .net/~initos. com/openobject- addons/ 7.0-715444- webdav- performance- improvement/ +merge/ 200288