It sounds like the app is generating an extremely high FPS. Likely in the 1000's. There are some enhancements we are making for high FPS apps in our driver that should help in the future. If this is it...... try adding this registry key.
In the following location:
HKEY_LOCAL_MACHINE\SOFTWARE\VMware, Inc.\VMware SVGA DevTap
Create the DWORD value
MaxAppFrameRate
Set a dword value that matches your PCoIP FPS. If for example you have the default of 30 fps. Set it to that.
WP