Bummer about your isle's new speed limit. Your government sounds like a kill-joy.
I don't know about the eastern half of the USA, but here in the desert southwest of New Mexico and Arizona, the "go-to" speed limit on our interstate highways is 75 mph. Texas, I believe, has a maximum limit of 85 on certain highways. (Guaranteed - if I'm wrong about that Texas speed limit, I'll be corrected in very short order.)
Mind you, these are just posted speed limits. It's not uncommon to be passed occasionally by drivers well into triple-digit speeds.