USA, Australia and others have quite rigid speed limits.
After adapting to the slow speed driving I always felt quite relaxed, even driving long distances there.
Returning back home I normally keep the slow speed mode for some time until I‘m back to normal.
Cruising seems to be more rewarding than speeding.
Most of my cars I drive with cruise control buttons instead of using the gas pedal.
All the money I save on petrol and speeding tickets I can spend in restaurants.