Are you using CoreAudio AAC as audio encoder ? If so, try to use Media Foundation AAC instead.
I checked a little bit on OBS MP and, unfortunatly, there's no way to change that for streaming right now....but that's a detail ! ^^'
I read your logfile a little more &...why choose "slow" as x264 preset ? it's far too slow for streaming ! Switch it on "veryfast" or "faster" & tell me if that improved ! ;)
Can't see any issues in your log tbh. This doesn't have to be an issue on your end. Did you try a different server yet?Log File Attached.
Description of Issue: While streaming, the video for viewers began buffering frequently, additionally, on my end I began dropping frames rapidly and unintentionally running at half of my set bandwidth.
Thanks in advance.