The AFC West side secured their third win of the season with a 21-18 victory over the Pittsburgh Steelers last Sunday.
The quarterback told reporters: "We'll get better. I mean, we've had maybe two bad games, maybe one bad game of passing. [New England Patriots quarterback] Tom Brady had 115 yards this week, so it happens.
"We're not dwelling on that. We're going to be explosive in the passing game, there are nine games left. We can make a lot plays and there are a lot of plays to be had.
"We're not really looking at what we didn't do well or what we didn't do or had the opportunity to do. We're looking to the future and we see a lot of greatness in the passing game coming up in the future."
The Raiders host the Philadelphia Eagles on Sunday.