Make the cars and the trains run faster

[byxxiaonanhui]

As for county roads, let's say that one square is 10 m, for regular street, a car usually runs at 30km/h, which means 8.3m/s, and the cars in there are slower, for planes, they run at 300km/h, which means 83m/s, and the cars obviously runs slower than that, so why not increasing speeds to them?
You might say that some phones might get slower doing that, so I think we should add a button to choose cars speeds.

[imajoke]

Because the current speeds just work.