Question / Help Inconsistent BitRate on Twitch, not on Mixer or Youtube

[Nickname%PN%]

For some reason, since two months, if I try to stream on Twitch my bitrate is highly inconsistent, which leads to either frame drops or loading every 2 minutes. I only have this problem on Twitch, Mixer and Youtube work perfect for me (settings on Twitch: Rescaled Output to 1280x720 on 30 fps, encoder x264, BitRate 2500) on Mixer 1920x1080 on 60 fps with 5000 bitrate work perfectly fine. Twitchtest Screenshot attached, which shows results in a acceptable state, but on twitch inspector, you can see the mess. (I dont think its my hardware btw i7-7700k, 16gb ddr4 and gtx 1080, Internet speed 50k down 9-10k up, also confirmed by different tools). I even opened every Port on the router and windows defender, no clue whats the problem....

 

[Harold]

The acceptable state you describe is actually below acceptable due to the connection quality for ALL servers listed being below about 95.
Most usable streams start at 80.

 

[Nickname%PN%]

Ok, but what could be the cause for it, since I dont have any problem stremaing to Mixer or Youtube

 

[Harold]

Bad routing to twitch likely.

 

[Nickname%PN%]

And what can I do to solve this problem?

 

[Harold]

You personally, not a lot.
https://obsproject.com/wiki/Dropped-Frames-and-General-Connection-Issues
It's at a level where ISP interconnect techs need to deal with it.