I must admit I get very annoyed by motorway middle lane hoggers doing 55mph (JUST WHY, you SELFISH bleeps!!) and occasionally frustrated at times on a NSL carriageways when someone is pootling along at 35-40 when the conditions are perfect, 50 yeah, I've no sweat with that and clearly when conditions/road design dictate slower of course.
I don't think get out my way, I just think that if there is an opportunity to pass safely I will because if you're holding up traffic that are doing at or just below the speed limit and you're clearly not able to get even close to that limit then I'm left to think you either have a mechanical problem or you're just not confident or capable enough to do so, in which case I'd rather be in front of than behind. if I know the road and there isn't going to be a passing point for a while I hit Classic FM and kick back.
Obviously with HGVs they're only allowed to do 40 on NSL single lane carriageways and in many situations can be at or near the limit of their safety anyway especially with some of the banked/twisty sections that our oads throw up and their lack of ability to brake anything like a car.
I watched with a little amusement/bewilderment (50/50) a Fiat of some sort doing about 35mph up the A1 from Stevenage toward Welwyn, luckily it was a Saturday mid morning so not heavy traffic but some doddery old fart behind the wheel clearly not able to have the reactions to go any faster..another day, another time and he'd be an accident waiting to happen. If he wants to drive at that speed, fine but stick to the other roads that will get you to where you're going without you breaking out in a sweat because you've hit the dizzy speed of 40mph
Simple facts are that passing a learner test is too easy (& always has been), there are too many people on the road not competant to drive a motorvehcile both in mental attitude/aptitude and also purely from a physical (eye sight etc)/motor skills POV.
Blanket re-test for everyone with a much higher pass level including compulsary training on vulnerable road users and the actual law regarding such. Medical certs to be produced to prove you are fit to drive everytime you renew your insurance. If we are serious about road safety then these must be minimum requirements of the persons behind the wheel.