That surprises me, given that the book is much slower paced than the show. I loved the book too, and you should give the show another chance. I do recall the first episode or two being rather slow paced, but it picks up speed and the last episode in particular is very exciting. I like that they build everything up steadily rather than going at full speed the whole time like a Hollywood movie. The characters are so complex and they do them justice, IMHO.
Had me seriously tearing up at the gym with Sybil's death (just watched that episode this morning). Yowza. I didn't think I cared that much for her.