Running two instances of parallels in paralell?

Hi,
I'm using parallels on a M1 Max MacBoook Pro. Obviously with the restrictions of parallels given the new hardware of macs. My main usecase for using windows is that I have a software that processes lidar data and need good computing power. Ideally I would like to use as many cores / threads at the same time as possible since the software is built to only use one thread - but can run many instances at the same time.

However - parallels on an M1 is restriced to using 8 vCPUs. I wonder if it is possible then to run several parallell instances of parallels - so I can run 8 vCPUs on each parallels instance? I would assume my M1 Max with 64 Gb should be able to handle more than 8vCPUs at the same time. Or am I wrong in my way of thinking?

/Stefan