1. In Windows, we recommend that "Game Mode" be enabled. Game Mode can be enabled via the Windows "Settings" app, under Gaming > Game Mode.
2. Run OBS as Admin
3. Your OBS audio Sample Rate doesn't match your devices sample rate. Change it to 48000 Hz.
4. Avoid using Display Capture unless you need to capture Windows stuff such as Start menu and desktop.
5. If your HD60 X and OBSBOT cam does not use the entire canvas, lower the resolution on the camera instead of resizing it.
6. In the camera settings in OBS, enable Buffering and Hardware decode (if available).
7. I think you can change the encoder preset from 6 to something better.
YouTube recommends 7.5 Mbps for 720p 60FPS H264 uploads. There's a reason for that. I know twitch "limits" to 6 Mbps but hopefully that changes soon.
Your log doesn't show any encoder overload/skipped frames/dropped frames.