Why were the bombers in the beginning so fucking slow, and how do bombs “drop” in space?

The whole Finn Asian girl casino thing was a giant wast of space and time. Somehow this chick falls so insanely in love with a guy she’s nevertheless met before in a matter of hours and risks her life to stop him from giving his life to protect everyone else

It’s like the director made this movie for teenage girls. Is this the same guy that did the twilight series?