In recent upgrade to the protocol we introduced pipelining requests for pieces which resulted in significant improvement in the transfer rate of pieces.
There is always room for improvement and a good starting point from here would be to try to do some performance measurements. A useful alert from libtorrent that can point to any potential bottlenecks in the whole request response cycle could be the performance_alert
In recent upgrade to the protocol we introduced pipelining requests for pieces which resulted in significant improvement in the transfer rate of pieces.
There is always room for improvement and a good starting point from here would be to try to do some performance measurements. A useful alert from libtorrent that can point to any potential bottlenecks in the whole request response cycle could be the performance_alert