English is spoken fast but so is every other language. Russian is particulary hard to understand. In my opinion Russians speak very fast, also the fact that Russian uses a different alphabet to the Latin alphabet makes it even more difficult.

Hard... very hard and fast English

I know family, who lived in US. I asked they, talk with me in English... Then they start  i thaught what i never can't understand this language. You, englishmen! Are you always speak so fast???