I'm a soon-to-be masters swimmer and I need some advice

hey, Ok, I used to swim competitively in high school, but never swam with USS, but now that I'm graduated and off to college, I am going to start swimming again after a long year break. Now here's my question: Are the Masters practices usually less intense than those of the "younger" workouts? I've looked at the times of a couple master's meets and they are considerably slower than what I thought they would be...(no offense). I just want to make sure that if I am going to do master's swimming, that I won't be bored out of my mind with easy workouts. How do the master's and USS compare?:confused: