Question / Help CS Go FPS drops

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Hello

Setup:
CPU: Intel I5 4460
GPU AMD Radeon R9 290
Mainboard: MSI H81M-E34
Monitor 1: BenQ GW2250 (1920x1080) Plugged into GPU
Monitor 2: AOC 916Swa (1440x900) Plugged into Mainboard
Upload: 9000kbps possible (in OBS set to 3000)
Windows 7 64

Without OBS running I have 200-300 FPS in CS GO. With OBS running it drops to 50-150 and CS is neither playable nor streamable anymore.

I tried the x264 and quick sync encoder. Both had the same problem. With quick sync i did not get a better result.
Now I read that it may be due to my monitor 1 where Im playing and therefore capturing the game is plugged into the GPU and therefore quick sync has no effect. Is that true?

And can anyone explain me how to fix this?
Do I need to play on my 2nd smaller monitor? :O

Logfile: https://gist.github.com/e804df08c02d0beb6163

 

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Okay so far my first test now managed to keep a good FPS ingame. Added a virtual desktop and it worked I guess.
Thing is: Sound is de-sync :( - as this guy describes it: https://obsproject.com/forum/threads/obs-quicksync-audio-delay-on-bf4.9298/
First test - you can hear/see the little offsync. http://www.twitch.tv/atocx/b/681990024

Anyone any suggestions on how to fix this?

Logfile: https://gist.github.com/anonymous/d0324e9be30108d3557a

 

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Push

Problem with the virtual monitor is that I have a "ghost mouse" whenever i am on my main monitor with my mouse. The ghost mouse is attached to the side where I leave the screen to the 2nd monitor.

 

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Had a suggestion via reddit to lower the bitrate. I tried streaming with 2000kbit/s and I am using quicksync right now with a 3rd (virtual) monitor that is giving me a ghost mouse. Stream was fine tho except the offsync of the sound and that I had to stop after 1 1/2 hours because my upload went to 1k. Maybe thats because I am using a wifi connection?

 

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