I run both PD15 and the current release of VMware. When running downloads (mostly of fixes for the Mojave virtual machine on each) VMware out performs PD15 by a large margin (20 mins download on PD15 versus about 11 on VMware). I have submitted problem reports in the past and never heard back. I can provide Wireshark traces if needed. It is enough to make me use VMware most of the time.