At some airports, the airfield elevation isn’t very close at all to sea level. Take MMMX for example, the airfield elevation is 7,316ft MSL.
Violations kick in when you are below 10,000ft MSL, so hypothetically you could fly as fast as the airframe would allow at low altitudes.
Just because you can fly that fast does not mean you should. Flying at cruising speed into an airport and contacting approach is a nightmare for the controller. It’s like vectoring a hoard of missiles.
Note your altitude in AGL relating to the airfield elevation of your destination airport. Don’t exceed unreasonable speeds when contacting approach. Work with them, everyone work together.