FWIW, I think the new Overloud REmatrix Solo convolution reverb is a lot better than Perfectspace. While it's probably a good idea to install Perfectspace so it will show up in legacy projects, I think it's worth converting to REmatrix Solo in new projects.
The VC-64 is a different matter. I
love that plug-in because of the parallel processing options, but it seems a virtual certainty it will never be updated. Cakewalk does not own the code, and all attempts to locate the person who does (going back years) have been unsuccessful.