You get the picture. It drags, and it bores the reader. My next point is focus. The red thread is the focus of your book, whether you're talking mystery, horror or romance or whatever. Grab that red thread and hold on.
Point of view is another problem for writers.
I'd recommend not introducing too many POVs, because this is tricky. You have to delineate character shift smoothly and clearly, which becomes a handful when you have multiple characters. POVs should be shifted between chapters or paragraphs or at least between scenes. Two or more POVs per scene can be confusing and jarring. Another pitfall is repeating oneself ad nauseam.