I'm not saying you have to deal with it, but you sort of do. You are getting paired up with 7 other people with their own motives. When you join say you are new, and if they can do a full clear or let you watch cutscenes. Only massive dicks will be in that big of a hurry that they can't let you watch them. If they won't ask to be vote dismissed so you don't incur timers, requeue and try again. Other options are PF or asking your FC. Don't need a full party just the majority. Then you can be in control.

As far as SR in low level dungeons, its usually a matter of asking. Some lowbies they are just in there because they need it for a quest and could give less of a shit. They just want to get it done, so they can continue on with the story or whatever. Some are running for the XP, others gear. If no one specifically makes a request of me, I will skip what I can. If I see someone is new to that dungeon, I will ask them how they would like to proceed and let the group majority decide.