Same same but different is the saying in Cambodia. I have briefly lived in urban areas for short periods in my life, especially Paramaribo. Even on the bicycle sometimes it would take me an hour to go 5km in bumper-to-bumper traffic. I don't know KL very well, but I assume the older parts of the city have narrower roads and therefore more traffic jams. That particular street you were on is barely wide to park a car.
Cambodia is opposite, students must be at school by 7:00am, but teacher can come after 7:30am if they like 😁.