Groove Music is saturating CPU on Windows 10 virtual machine

Although I realise I'm probably the only person in the world that uses it (I prefer its implementation of 'shuffle' to iTunes' version).

I have MacbookPro14,1 Mojave 10.14.4 with Parallels Desktop 14.1.3
Guest is Windows 10 Home Single Language 64-bit (10.0, Build 17763) (17763.rs5_release.180914-1434)

To reproduce just start Groove on the guest OS (don't need to play anything or do anything) and have a look at the PC CPU consumption. It is stuck at 100% with Groove using anything spare from the other processes.
I have about 500 music files in the library, which is in the host Mac OS 'music' folder and Groove has previously located and indexed.

Groove works fine and plays music, but after a short while you can't hear it because the Mac's fan starts up as the CPUs try to melt through the desktop.

 

Hi, and what about number of CPU on Windows and Mac side? Could you please make a screenshots of Task manager and Activity monitor after the issue reproducing?