Not sure if you moved the Windows Paging file to another partition or not but that also speeds the save changes up. Also it is a good idea to move your event logs to another partition or drive as well, to have event history.

And thanks for bringing this thread back to life :-)
Having your Paging File and audit logs on a separate volume (ideally a volume, separate partition otherwise) is always a good idea. Ideally, your Audit logs will be collected periodically by a separate machine/process to prevent their being overwritten and/or compromised. (Not all users care about audit logs obviously.