Which cpu? Streaming on a lower tier cpu while playing 7 games? I dont see that being able to provide stable'ish fps. Streaming in 1080p? Which quality? Bitrate? Internet connection? Not much to go on here...
Personally my main game is set to 60 fps front and 60 fps background. My slaves are set to 60 fps front, 30 fps back (on old pc = was at 20).
If you dont stream, are you happy with how the games play then? If you are, you know more where the problem may be.
Connect With Us