Problem with video texture: Their playback stuttery in exported video

Hi

I use video textures on pc screens in my scene. However, once exported as part of a video, they appear stuttery in the final result: The output video itself is fine (interior walkthrough and the camera movement is fine), it is the video displayed on the pc screen that is not. I made sure that the video texture is at the same framerate as the output video (both 30fps).

Any idea? Thanks.