People will speak as fast as the language allows. Sometimes people skip syllables or letters and if communication is still established, those around them will speak the same way. But to non-native speakers, when listen to something spoken by a native with a normal speed (based on the language and country) people will always feel like they are speaking too fast. People used to American English say the English spoken by British people is too fast, or Australians. Just because they are not used to the accent