On a single-lane road like that one, I would slow down considerably when approaching houses. My first time in Europe, I was astounded at the speed people drove on roads narrower than a one-car driveway, often totally blind to crossing traffic.
It's possible that i was wrong
I assumed that these painted lines on the road are from line start to the next line 3 meters apart, i counted 8 lines passed in 30 frames so 8*3=24ms=86kmh.
So calculations were right but if that distance is not 3 meters then i'm out.