Download the CompactVHD tool and copy the executable to your environment.
It is expected that the program will typically be run from the ProfileUnity server, whereas the ProfileDisk VHDXs will typically be stored on a file share on a file server/NAS or perhaps elsewhere in the network. In any case, the key is that this program is extremely I/O intensive. Because network file access tends to be slow, the program copies the files from the network share to a working directory via the /WorkDir option, which should refer to a local directory, ideally SSD. The program then does the most I/O-intensive operations in the working directory, and then copies the results back out to the network storage where ProfileDisk files are normally located.
