Speakers of some languages seem to rattle away at high speed like machine-guns, while other languages sound rather slow and plodding. But looking only at the speed in which a language is spoken there are no differences between languages in terms of sound per second or syllables per second
(Bauer & Trudgill, 1998).
               If you look at stress-timed languages such as English, or syllable-timed languages such as French or Spanish people usually perceive syllable-timed speech sounds as faster. In syllable-timed languages equal time is given to all syllables while in stress-timed languages there is more time spend on stressed syllables and less on unstressed syllables. Unfortunately many studies have been unable to confirm these claims. We might have to accept that languages and dialects just sound faster or slower, without any physical measurably difference. So the speed of a language might simply be an illusion
(Bauer & Trudgill, 1998).
               Another way of looking at the speed in which languages are spoken is by looking at the social factors that influence speakers. In some societies it is regarded as acceptable to speak rapidly, while in others slow speech is preferred. Slow speech is usually preferred for males. There are variations in speed associated with the situation in which the speech is produced; we speak more rapidly if we are in a hurry, if we have something urgent to say of if we want to interrupt a conversation. We tend to speak slowly when we are tired or bored. So the emotional state of a speaker is clearly of influence. But some people are just naturally faster talkers and others are naturally speaking slowly within the same language and the same dialect within the same situation (Bauer & Trudgill, 1998).

In the end there is no real evidence for some languages to be spoken more quickly than others. The most plausible why we feel like some languages are spoken more quickly is based on the social situation and the natural way in which some speakers talk faster or slower than average. I personally speak very fast compared to others who speak the same language and the same dialect. I even speak fast in English or German so it doesn’t matter what language I speak, it’s something within me.