It's a bit slow.

Meaning

The pace of the movie or book is too slow.

Examples

• John: Did you enjoy the movie?
• Alice: It was okay, but <b>it's a bit slow</b>.
• John: I've heard that. What did you think of the acting?
• Alice: The acting was good, but the pacing was off. <b>It's a bit slow</b> for my taste.