McAfee MOVE. It's a separate license from VSE, however, so you would need to purchase it separately.
We're looking at running MOVE in a VDI environment, but we've had no issues running the traditional VSE client on our server VMs in the datacenter. You may want to look into some other issues. How many vCPUs do you have assigned to your servers? Is an On-Demand Scan running when you're seeing these performance hits?