An error occurred while saving the commentmonksuu commented
The "Finnish" server (really looks like to be in London, UK) 188.8.131.52 is lagging really hard. Looks like it happens every time of the day so we can rule out lots of traffic around 4am. According to traceroute the last visible hop is on 184.108.40.206 that belongs to cogentco.com. If the server really was in Finland, it wouldn't go to servers in London (lookip.net/ip/220.127.116.11) or servers having "sto03" (Stockholm, Sweden?) in their domain name.
Pinging the "Finnish" (from Country Flag + extension) server gave lots of answers:
--- 18.104.22.168 ping statistics ---
100 packets transmitted, 100 received, 0% packet loss, time 99186ms
rtt min/avg/max/mdev = 23.877/183.443/2366.548/427.185 ms, pipe 3
No wonder it can't keep up with 1080p60 stream running 6 kbps while sometimes waiting for packets up to 2.4 seconds. The server can barely keep a 1080p60 stream downscaled to 720p60 going without buffering constantly but the low latency mode is off the table.
It's been about an hour since I started writing this comment and I had a stream running in background. It was set to be in low latency but the current latency to the streamer is 4.33 sec with 29 skipped frames in 720p60.