Processing Named BOM very slow

We are trying to use named BOM's with editable variable to monitor the progress of jobs.When I say editable variables I mean I create say 5 new variables that a user can edit and add these as columns to the Named BOM.  When you check the BOM out, you can then update each of the 5 new fields for each part/assy.

What we have found is it is extremely slow to open, check out or check in the BOM.  Does anyone know why BOM's would be slow??  5-10 minutes per operation slow.

Even just opening the calculated BOM is slow.

Thanks,

Jason

SolidworksSolidworks Pdm/enterprise Pdm