why do large cache files translate to long open times?

[drichards-2]

for work spaces with very large cache (>5gb), when first opening the work-space it takes a very long time to open the first file.  My understanding of the cache is that it is a locally stored file.  So between my solid state drive, and my 8 core processor, loading local files should be a breeze.  If i have a new or empty workspace, it does not take so long to load.  So what is windchill/ creo doing that causes this to take so long? 

[Jason27]

I do not know the reason why it takes a very long time to open the first file in a work spaces with very large cache.

When I work with workspaces, I only save the working cad files in the workspace and try to make the workspace cache smaller. I feel the workspace do not work very well when it is very large.