I agree with everyone else here. Just because people don’t cry or speak slowly doesnt mean that they are not reverent.
Your attitude reminds me of what I used to encounter in my husband’s Pentecostal (Assemblies of God) church. During praise times, everyone in the parish lifted their hands (see I Timothy 2:8). Everyone except me, since I didn’t feel comfortable praying like that (I was raised Baptist, and we did not do any kind of outward display of worship).
The people in that A of God church would turn and STARE at me, and frown, and whisper to each other. Sometimes they would try to witness to me after the worship service, as though I was a non-believer. Ooooh, that was frustrating!
Here in the Midwest (Northern Illinois), we talk very fast. Listen to President Obama speak, and you will see what I mean (and he slows down when giving a speech).
My husband and I moved down to North Carolina, and for the first year or so, whenever we went to a restaurant or store, the waiters or clerks would say, “Honey, slow down! I can’t understand a word y’all are sayin’!”
My daughter just moved to Texas, and she’s getting the same thing. Everyone tells her that she moves and talks too fast.
Of course we (and she) are polite about this kind of judgement from those who are not from the Midwest, but honestly, if it happens again, now that I am older, I would probably come right out and say, "What right do you have to judge me for talking fast? What would you say if I said, “You talk too slow.”
My point is, stop judging others.
One more thing–others have said that you should volunteer to lead the Rosary for the group. At first, I thought, “Great idea!” But now that I think it over, I would say, “No, don’t volunteer.” Many people who come to pray the Rosary with the group have limited time due to work or family obligations. If you lead the Rosary and make it last longer than the 15-20 minutes, these people will have to leave before the Rosary if finished, and that’s not very nice for them.
So just let the leaders who are already there continue to lead, while you go to a place where you can pray the Rosary at the pace that you prefer.