Start slowly, then go faster. Get it right first before you speed up.

1] You should study how words are liaised in the English language. Here's a great site where you can read about liaisons and American accent: http://www.americanaccent.com/liaisons.html 2] Read a lot of books that are written in the English language. 3] Practice everyday by talking to native speakers. Hope that helps. Happy learning (^v^)/

I think the more you speak English aloud and practice the pronunciation, the easier it will be to say it faster. Maybe by talking to yourself in English or reciting sentences more than once out loud.