Is There a Speed Limit in North Carolina?

The speed limit in Illinois is also 55. And most of the states out West that I've been to, the drivers are fairly nondescript. But there's one state that he has driven in quite a bit where there is that that registers in me in tense frustration. It's like there are no rules whatsoever for lanes. The pace of life might be chill; but it's like, dude, you're in the left lane going 55.