CorelDraw operating very SLOW

I recently did a bunch of cleaning up on my desktop computer, such as deleting various files (not CorelDraw files), thousands of old emails, and some software no longer needed.  After doing so, I noticed that certain actions in CorelDraw (such as Copy/Paste/Save/Open etc) are MUCH slower than before.  I know that correlation is not always causation, but any ideas as to why my X7 is now so slow?