Uisng Beas with Remote Desktop Server

Our few remote SAP B1/Beas users connect with VPN through a shared remote desktop server.

The remote desktop server is required as SAPB1/Beas will not load with running the PC client directly across the VPN.

On occasion, we have experience a severe slow down in Beas, especially when scanning barcodes for example.  

Does anyone have any guidance on using RDS with Beas - I'm wondering if the strict licensing model is block some processes when we have multiple user session on the RDS.

thanks