The great thing about a TC is they don't have speed limiting trailer tires. I drive the posted speed limit or faster if traffic is flowing faster. On VA interstates that's 70 to 75 mph. The truck and camper handle great.
If I have the boat in tow I have to slow down to 65 mph because of the tires.
I do not have the luxury of endless amounts of time to get where I'm going. I work for a living and vacation time is limited.
I believe that people going 55 or 60 or whatever on interstates where the posted limit is 70 or 75 are more of a hazard than they realize. What they may not see going on behind them is all the braking and lane changing of all the traffic trying to get around them. A rolling roadblock going 15 mph slower than most other traffic isn't any less of a hazard than all the people going 10 or 15 over the limit.