create VM with appropriate drivers using orchestrator for best practice

Hello,

I am beginning to use vro to create VMs automaticaly but orchestrator with the "create custom VM" does not optimize the vm drivers according to th OS installed as vsphere do when creating a VM from the vsphere client. or powershell API

for exemple to choose a paravirtual controler and vmxnet3 network card when installing redHat

does that mean that this is not important?

or do I miss some thing?

thanks