I Need Help Finding out If there is a Fallacy that perfectly describes such

There is no such fallacy because it is too specific. For example, substitute speed with virtually any adjective and you would have a new fallacy. This would be quite rare, so it would fall under the generic fallacy— non sequitur . It doesn't follow that because something is faster it is better. Ask any woman.

Sounds like jumping to conclusions 

We've just assumed faster = better, without the necessary context or depth in the argument.