Logitech C922 Pro Web Stream 7 OBS Performance Issues

Source: https://obsproject.com/forum/threads/logitech-c922-issues-only-on-obs-not-on-any-other-programs.58702/

I was having this same issue Thank you so much "So Who You" switching from a 3.0 to a 2.0 port fixed the issue. I really appreciate it

Test results on a Logitech C922

Baseline Test Parameters
- OBS set to recording mode
- USB 3.1 Gen 1 port over 6' USB cable extension
- OBS Base 1920x1080
- OBS Output 1920x1080
- C922 Webcam settings
- Video Format: MJPEG
- YUV Color Space 709
- YUV Color Range Full
- Buffering Auto Detect
- Audio Output Mode Capture audio only

Logitech C922 Flickers
------------------------------------------
Low light compensation OFF
- 1920x1080@30 and Match Output FPS
- 1280x720@30/60 Match Output FPS
- 960x720@30 and Match Output FPS

Low light compensation ON
- 1920x1080@30 and Match output FPS

Logitech C922 Doesn't Flicker
--------------------------------------------
Low light compensation OFF
- 800x600@30 and Match Output FPS
- 640x480@30 and Match Output FPS
- 800x488@30 and Match Output FPS
- 320x180@30 and Match Output FPS

Still Testing
-------------------------------------------
Low light compensation ON
- 1280x720@30/60 and Match Output FPS
- 960x720@30 and Match output FPS
- 640x480@30 and Match output FPS


Test results on a Logitech C920

Baseline Test Parameters
- OBS set to recording mode
- USB 3.1 Gen 2 via Unitek 4-port USB Hub
- OBS Base 1920x1080
- OBS Output 1920x1080
- C920 Webcam settings
- Video Format: MJPEG
- YUV Color Space 709
- YUV Color Range Full
- Buffering Auto Detect
- Audio Output Mode Capture audio only

Logitech C920 Doesn't Flicker
----------------------------------------------
Right Light OFF or ON
- 1920x1080@30 and Match Output FPS
- 1280x720@30/60 Match Output FPS
- 960x720@30 and Match Output FPS
- 640x480@30 and Match Output FPS


AC Power 50Hz or 60Hz
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Although this wasn't the source of my problem (I'm set at 60Hz in the USA), there's an anti flickering option.

In OBS Studio, right click on your webcam source
Go to Configure Video | Video Proc Amp
Set the power line frequency for your country's AC power. In the USA its NTSC 60hz, for other countries its PAL 50Hz.