OBS Studio Settings for Low End PC

Running OBS Studio on an older or budget computer can result in laggy recordings, high CPU usage, and dropped frames. This guide provides a straightforward walkthrough on how to optimize your OBS Studio settings specifically for a low-end PC, allowing you to capture high-quality video and stream smoothly without overloading your system resources.

1. Adjust Video Settings (Resolution and FPS)

Reducing your resolution and frame rate is the most effective way to lower the strain on your CPU and GPU.

• Base (Canvas) Resolution: Set this to your monitor’s native resolution (e.g., 1920x1080).
• Output (Scaled) Resolution: Downscale this to 1280x720 (720p) or even 1024x576. Lowering the output resolution significantly reduces the rendering workload.
• Downscale Filter: Choose Bilinear. It is the fastest filtering method and requires the least amount of processing power.
• Common FPS Values: Change this from 60 to 30. Cutting the frame rate in half instantly reduces the performance demand on your system by 50%.

2. Optimize Output Settings (Encoder and Bitrate)

The encoder translates your screen capture into video data. Choosing the right encoder is crucial for low-end hardware.

• Output Mode: Switch this from Simple to Advanced to unlock more control.
• Encoder: If you have a dedicated graphics card, select the hardware encoder (like NVIDIA NVENC, AMD AMF, or Intel Quick Sync QSV). This offloads the work from your CPU. If you only have integrated graphics, use x264 (CPU encoding).
• Rate Control: Set this to CBR (Constant Bitrate) for consistent performance.
• Bitrate: For 720p at 30fps, a bitrate between 2,500 Kbps and 3,500 Kbps is ideal.
• CPU Usage Preset (for x264): If using x264, set the preset to veryfast or superfast. The faster the preset, the less CPU power OBS will use (though image quality may slightly decrease).

3. Change Process Priority

Giving OBS Studio higher priority in Windows ensures that the operating system allocates resources to your stream or recording over other background processes.

• Go to Settings > Advanced.
• Under the General section, find Process Priority.
• Change the setting from Normal to Above Normal or High.

4. Disable the OBS Studio Preview

The live preview window in OBS constantly renders your screen, which consumes valuable GPU power.

• Right-click on the blank space around the preview window in the main OBS interface.
• Uncheck Enable Preview.
• You will see a black screen in the center of OBS, but the software will still record or stream perfectly while saving system resources.

5. Run OBS as Administrator

Running OBS Studio with administrator privileges allows the software to bypass certain Windows limitations and prioritize GPU allocation.

• Right-click the OBS Studio shortcut on your desktop.
• Select Properties > Compatibility tab.
• Check the box for Run this program as an administrator and click Apply.