since it seems to cost us 20% performance

Change-Id: Ic4796ee3756c8c722feb4851dc48a99e882ba0fe
Reviewed-on: https://gerrit.libreoffice.org/57545Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>