Hyper-V has an advantage over VMWare when hosting windows on windows. Hyper-V uses a Virtual Machine Bus to improve drivers. VMWare is not allowed to use this O/S feature.
https://learn.microsoft.com/en-us/windows-hardware/drivers/network/overview-of-hyper-v
every program and service you run effects performance. your VM can host a program that is cpu bound or uses lots of disk io which can affect the host. you can limit the number of cpu core and memory the VM uses.