OBS high CPU and GPU usage

[Jacon]

Hi, while streaming Space Marine 2 on Twitch (after 20+ minutes of smooth gameplay) the "Electric Consumpion" of OBS goes very high. (Also with Dragon's Dogma 2) And destroy the stream. Already lowered the graphic for the game, don't solve the problem. (Can play at ultra without OBS)
Preset already on low quality, (as OBS message suggested), same issue.

My PC spec
CPU: Intel Core i9 10900K @ 3.70GHz
RAM: 16,0GB Dual-Channel
Motherboard: Micro-Star International Co. Ltd. MPG Z490 GAMING PLUS (MS-7C75) (U3E1)
GPU:ASUS MG279 (2560x1440@144Hz) 4095MB NVIDIA GeForce RTX 3070 (MSI)
Running on a SSD
Power Supply: 850w

I've removed the gif from streamlabs.
I use nvidia broadcast to remove the background, nothing change if I set it off.
Rest the java scrip via cmd. "regsvr32 jscript.dll"


log of the stream: https://obsproject.com/forum/attachments/2024-09-13-11-40-26-txt.107683/

Changed some setting and try to run OBS and SM2 again, no issue, but it's only a recording, not a live, and only for few minute. (log below)
I leave some of my settings.

Any suggestion? Thanks.

 

[Lawrence_SoCal]

you have audio sources at different sampling rates (though webcam audio no in use, so maybe non-issue) ... best to fix at operating system level
chromakeying is computationally intensive... no surprise *if* system already fairly high that this alone could cause issues

And you've chosen settings (like downscale filter) which, if I recall correctly, and I could easily be wrong) is more CPU intensive

My recommendation for testing
- copy Scene Collection and go into test copy and remove (not disable) ALL filters (audio and video), all chromakeying/background removal type filters, do not use nvidia broadcast (make sure not running as bas background process at all). [this include removing gif. Remove background removal plugin (just to be safe)
then try a test

 

[Jacon]

you have audio sources at different sampling rates (though webcam audio no in use, so maybe non-issue) ... best to fix at operating system level
chromakeying is computationally intensive... no surprise *if* system already fairly high that this alone could cause issues

And you've chosen settings (like downscale filter) which, if I recall correctly, and I could easily be wrong) is more CPU intensive

My recommendation for testing
- copy Scene Collection and go into test copy and remove (not disable) ALL filters (audio and video), all chromakeying/background removal type filters, do not use nvidia broadcast (make sure not running as bas background process at all). [this include removing gif. Remove background removal plugin (just to be safe)
then try a test

How do I fix at operating system level? What I have to do? (I have not clear what it is)

Chromakey is for the "starting soon" banner (disable the image when not in use) can still be a problem?

I have removed the plug in (background removal and the other) from the folder also (thei are not in use anyway)

I even close the browser, like today.

I have only the filter for the mic, like noise reduction (from nvidia broadcast) the compressor and the limiter. Also 2 filter for the webcam, a bit of color correction and sharpness.

My resolution is 1440p so it's better if I strem at 1440p and not at 1080!? Same at exit rescaling.
I've heard dawnscaling will be less "heavy" for OBS.