Go fast.

Go as fast as your little legs can carry you.

That is the standard that has been set. People know how fast things can be run, either through lucky df or running with their FCs. Anything less than excellence they will see as the party not pulling its weight.

If you're new or not confident, say something. People are allowed to be bad at their jobs or unsure but the expected standard is bigger pulls and faster runs. So if you can't deal with that people are going to be more accommodating if you say something about it. Either that or run with people who know that you're still getting up to speed. Most of my FC started tanking or healing only within the FC until they learned how to do it effectively enough to keep the pace that people expect.

I love ten minute dungeon runs. When I leave a ten minute dungeon run I smile and tell all my friends how amazing it was. It's what I hope I get every time I roll solo. (When I roll with the FC I know I'll get it.)