> **Possible Duplicate:**  
> [Is 'low speed' finally proving its merit?](http://english.stackexchange.com/questions/55655/is-low-speed-finally-proving-its-merit)  

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Recently in a mayor presentation of upcoming product I saw slide talking about *"faster performance"*. Then in BBC article covering same event, they wrote about *"faster speed"*. 

Are these phrases considered correct in English? I'm coming from a language, where that would be considered pleonasm, and the only correct way is to say *"better performance"* and *"higher speed"*. Is that not the case in English?

Quick look at nGrams suggest that indeed "fast speed" and "fast performance" aren't used often. 


![enter image description here][1]

![enter image description here][2]


  [1]: https://i.sstatic.net/MfsHY.png
  [2]: https://i.sstatic.net/hp5Jr.png