04 - Check the Virtual Machines Memory Configuration
Each virtual machine is configured by default with 2Gb of memory. If you have a host machine with more than 6Gb of memory, you can increase the virtual machine's performance by increasing the --memory parameter for each machine in the machine_setup script prior to executing it. The recommended value for each VM is 1/3 of the physical memory or 4Gb, whatever is smaller.
Edit the machine_setup file and adjust the --memory parameter for the VBoxManage import command for BOTH machines if you have more than 6 Gb of memory. The --memory parameter is expressed in Mb.
VBoxManage import "<Machine Name>.ova" <other_options> --memory 2380