I've only joined this sport this year so my perspective may be a little off. All the matches that I've been to it seems that there is a small percentage that shoot a "clean" match (no "P's" no misses). To me that says that even with close targets folks still miss or shoot out of sequence. Now if the targets were moved further or made smaller more shooters would not get clean matches. As far as time, it's relative, so with close targets if the stage is shot in 25 seconds and with far/small targets it's shot in 40 seconds, but everyone's time is slower than to me it's a perception issue. But as I said there'd be less clean matches and folks would be saying they shoot better close up.
But don't take my word for it, I'm new and they just about use a calendar to time me. I have fun and try to better my time each match so one day I can be an average shooter.