You can use the Log Analyzer which you can find in these forum threads. Here is a cheap version of the output which should give you an idea of the issue.
OBS (Open Broadcaster Software) is free and open source software for video recording and live streaming. Stream to Twitch, YouTube and many other providers or record your own videos with high quality H264 / AAC encoding.
obsproject.com
Log Analysis
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entire log file
Critical
Max Audio Buffering
Warning
9.4% Dropped Frames
Capture Interference
Multiple Game Capture
Info
Windows 10 21H2 (OK)
Not Admin
0.2% Rendering Lag
0.2% GPU Encoder Overload
Critical Max Audio Buffering
Audio buffering hit the maximum value. This is an indicator of very high system load, will affect stream latency, and may even cause individual audio sources to stop working. Keep an eye on CPU usage especially, and close background programs if needed.
Occasionally, this can be caused by incorrect device timestamps. Restart OBS to reset buffering.
Source affected (potential cause):
Chrome
Warning 9.4% Dropped Frames
Your log contains streaming sessions with dropped frames. This can only be caused by a failure in your internet connection or your networking hardware. It is not caused by OBS. Follow the troubleshooting steps at:
Dropped Frames and General Connection Issues.
Warning Capture Interference
Display and Game Capture Sources interfere with each other. Never put them in the same scene.
Warning Multiple Game Capture
Multiple Game Capture sources are usually not needed, and can sometimes interfere with each other. You can use the same Game Capture for all your games! If you change games often, try out the hotkey mode, which lets you press a key to select your active game. If you play games in fullscreen, use 'Capture any fullscreen application' mode.
Info Windows 10 21H2 (OK)
You are running Windows 10 21H2, which will be supported by Microsoft until
June 2023.
Info Not Admin
OBS is not running as Administrator. This can lead to OBS not being able to Game Capture certain games. If you are not running into issues, you can ignore this.
Info 0.2% Rendering Lag
Your GPU is maxed out and OBS can't render scenes fast enough. Running a game without vertical sync or a frame rate limiter will frequently cause performance issues with OBS because your GPU will be maxed out. OBS requires a little GPU to render your scene.
Enable Vsync or set a reasonable frame rate limit that your GPU can handle without hitting 100% usage.
If that's not enough you may also need to turn down some of the video quality options in the game. If you are experiencing issues in general while using OBS, your GPU may be overloaded for the settings you are trying to use.
Please check our guide for ideas why this may be happening, and steps you can take to correct it:
GPU Overload Issues.
Info 0.2% GPU Encoder Overload
The encoder is skipping frames because of GPU overload. Read about troubleshooting tips in our
GPU Overload Guide.
