Nope. The VM image does not consume RAM that equates to the size of the VM image. If that were true my 74GB image would be using 74GB of RAM. So me thinks you're confused.
The image size is the size of the VM file which contains the OS and every App that you have installed in that VM. The image resides on disk. My Win10 VM image is 74GB on disk yet Windows10 is consuming only 2GB of RAM while executing (running). Hmm?
In any case it's working for you so you don't have to understand it.
