Any way to speed up a Pack and Go?

I've been trying to Pack and Go a fairly large (2800) part assembly with drawings just so I can add a suffix uniformly to all documents used, I'm coming up on hour 4 of solidworks finding all the documents and references. Is there some reason it's taking this long? Is there an easier way to add a couple numbers to the end of this many documents? All these documents are in a single folder currently so it shouldn't have to be searching my whole computer for references.

I've tried searching for Macro's to do this with no luck, does anyone know of anything that could help?

Thanks!

SW2014 SP05

SolidworksAssemblies