See here: Content caching is disabled if mac os finds that you are running the os in a vm. You could try to disable the hypervisor bit, but I would not recommend it (I tried but it doesn seem to work..), or you can patch the kernel (at your risk), read here:   I just tried the kernel patching method and it works for me with catalina 10.15.5 19F101 (latest). Easy way (DO IT AT YOUR RISK): 0- disable