Peter wants to do more, but, as we’ve seen in previous trailers, Tony Stark wants Peter to stay low level, passing the important stuff up to whatever’s left of the Avengers.
Of course, as cool as the suit is, that doesn’t mean that Peter Parker gets to use it to do particularly amazing things.
We see in the trailer that Spider-Man is going to start out as very much a street level hero, helping old ladies across the street and stopping bicycle thieves.
When Peter comes across some pretty high tech weapons being used in simple robberies, he wants to track down the source, but Tony wants him to keep his head down.