Katie, it's very disappointing to learn that VectorWorks with OS10 has actually slowed down in speed very significantly over the previous OS's and that there is therefore nothing that can be done. If this is correct I can foresee thousands of users giving up not only on VectorWorks but on Apple, for purely commercial reasons. This takes VectorWorks from a professional commercial package to a domestic one - a very retrograde step.
However, I am told that the VectorWorks 10 for Windows is just as slow........