With NVIDIA 2x frame generation, the stream's frame rate is only half of the actual frame rate.

Is there an existing issue for this?

• I have searched the existing issues

Is your issue described in the documentation?

• I have read the documentation

Is your issue present in the latest beta/pre-release?

None

Describe the Bug

I just updated to the latest version of Sunshine (v2026.906.222525). The issue I'm encountering is that when I enable "2x Frame Generation" in-game, the final stream frame count statistics show only half the actual in-game frame rate; it seems the generated frames aren't being captured (as shown in the image above: the top-left corner displays the streaming frame rate reported by Moonlight, while the top-right corner shows the actual in-game frame rate reported by RTSS).

If I disable in-game frame generation, the final streamed frame rate matches the actual in-game frame rate displayed by RTSS (as shown in the image below).

My question is: is this a bug, or is there an issue with my configuration? Is there any solution?

I was using Sunshine version 2025.924.154138 previously and didn't encounter this problem.

Expected Behavior

Keep the streaming frame rate consistent with the actual RTSS frame rate.

Additional Context

I am using the DP Graphics Card Emulator.

Host Operating System

Windows

Operating System Version

Windows 11 Home 25H2 26200.9278

Architecture

amd64/x86_64

Package

Windows - msi installer (recommended)

GPU Type

AMD

GPU Model

Nvidia RTX 5080

GPU Driver/Mesa Version

616.64

Capture Method

Desktop Duplication API (Windows)

Apps

Log output

Online logs

No response

Start by reproducing the issue on Windows 11 with the Desktop Duplication API, NVIDIA 2x frame generation, and the reported Sunshine versions. Compare Sunshine's streamed frame count with the in-game RTSS rate and check whether generated frames are being captured; done means the streamed rate matches the actual rate under the reported configuration.