Yeah, I don't think "slow" and "long-winded" really mean the same here. Of course, we're all different, we all do therapy in our own way, some find it harder than others, some need more time than others... But I think diving into unprocessed trauma too hard, too fast and too heavy handedly is unhelpful (to say the least!) I got badly triggered quite out of the blue in a session a few months ago and the fall out from that was awful. It was brutal at the time and felt very intense afterwards - it took a few weeks to fully recalibrate from that level of being retraumatised. Hopefully, with your next therapist, you can go at whatever pace you find is manageable for you.
I tend to dissociate when we do the deeper trauma work and just get very shutdown and find it hard/impossible to express myself. So I guess those things alone slow the process right down for me....if I can't speak/am not present, we're not going to make very pacey progress!
From my own experience, I don't believe trauma work can be rushed or forced.... It just doesn't seem to work like that, however quickly you may want to make progress and 'do the work'.