Target time per segment (seconds)
 

What is the purpose of this option? Will an increased "target time" increase the size of the segments from the hosts?

thanks

Yes, segments are sized based on the estimated and measured host speed and the target time.
Example: Target time: 60s; Avg. host speed: 10KB/s
=> Segment size: 600KB

Of course it is not guaranteed that the target time is meet when the host speed changes. In the end it can be significantly higher or lower.

gotcha thanks