Hello,
You can check if congigure below registry helps on this frame rate is still only 30 fps after remotely setting the registry 15 issue:
If the server has the RD Session Host Role installed, apply the following registry keys to enable the RCM legacy model. It triggers an Active Directory query to check for RDP profile settings:
Path: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services and HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations<Winstation name>\
Name: fQueryUserConfigFromDC
Type: Reg_DWORD
Value: 1 (Decimal)
Then, restart the Remote Desktop Service. If the server doesn't have the Remote Desktop Service role installed, you must set up an extra registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server