Slow teams are slow to everything. In contrast to nimble teams, slow teams are slow to share vision, questions, strengths and learning.
People on slow teams do whatever they think is their work and expect everyone else to do the same. When things don't get done, people expect those who usually take care of them to take care of them. Sharing happens when people feel like it, are expected to, or not at all. Trust is low, meaning minimal or worse.
This is in direct contrast to nimble teams where people share everything because they have shared expectations that this is how work gets done. Trust is high. Work is great.