I just read your second post again and I misunderstood your question, I think. You are saying that the setting in TefView seems too slow?
The tempo in TefView should corresponds to BPM, beats per minute. Each beat is a quarter note so depending on the value of the written notes, a given tempo could sound slow or fast.
At 160 BPM, eighth note rolls will be fairly fast so if you can keep that pace, you’re doing pretty good.
What song are you playing?