I mean, the sim1 and sim 2 was a great move for obvious reasons.
but promods, the majority is in an already bad road to even try to go 110kmph, so why would try to go higher? And more isolated parts are easier to go around the slower players and the map is quite bigger than normally. so it is fine by default.
Meanwhile, on ATS, the servers was already dead, so going 130 was fine, but you wouldn't find much people, I did a trip from nevada to brithish columbia (PM canada), and only saw like 5 person in total. In a trip of over 2 000km. And the most assured place to see at least 1 player is at Las Vegas, not even moving most of the time.
I feel that sim2 could just be EU and sim1 become sim, and in sim 1, maybe a 10kmph decrease will be a better compromise. so, if you follow truck speed limits at all times, you don't feel slow down in the UK (max of 97kmph [60mph] in highways) or in Romania (100kmph [62mph] in highways)