application rdp portal framerate issues

Abertay

Hi,

We are looking into using the Watchguard app portal as our RDP gateway and its all working, but the framerate is very bad.
On a blank desktop you dont notice it too much, but run a webgl test like 'fishtank' and it looks like its managing 5FPS when the render speed on the device is showing 60FPS.
I've tried this via an M690 and an M4800 and both are the same.
Native Windows RDP still isnt amazing , but its at least double the framerate and doesnt lock the browser up preventing you from clicking anything.
Is there any way to tune this in Watchguard?
I've tried running 256 colours, but it doesnt help.

ps. Its not network. We have 10Gb/s and the client tested at 900Mb/s. Latency is good too and we've tried three clients on different subnets.
Client CPU is running about 10% and pleny of RAM.

thanks.

Bruce_Briggs

Are you expecting your real use of RDP for this to be such a rapidly changing screen content?

The RDP default is 30 fps which can be modified via a registry change.

Frame rate is limited to 30 FPS in Windows-based remote sessions
https://learn.microsoft.com/en-us/troubleshoot/windows-server/remote/frame-rate-limited-to-30-fps

Also see:
Remote Desktop Protocol (RDP) bandwidth requirements
https://learn.microsoft.com/en-us/azure/virtual-desktop/rdp-bandwidth

Bruce_Briggs

For your RDP access test, are you using a packet filter?