Jesus christ, 140kph?!? That’s fast. Max speed limit where i live is 120kph and that feels too fast for most roads.
What's surprising/weird/hilarious is the traffic fatality rate before and after the change:
https://www.theglobaleconomy.com/Poland/mortality_traffic_ac...
I'll let you google when that was so as not to spoil it.
Truth be told a lot of this has to do with most fatalities being that of pedestrians. Personally I witnessed two such accidents, fortunately minor ones. Both times it was a pedestrian crossing on their green, but the car turning right also having green.