traffic analyzer statistics and torrent performance

Hello , I see the traffic analyzer a very interesting option, shows me that computer or application that generates traffic on my network.
The problem is that when I enable the Traffic analyzer -> Traffic Analyzer option - Statistic , the download performance with torrent decreases significantly.
I have a 300 mbps connection that yields about 35 MB/s downloading torrent files with many sources, but when statistics are enabled , performance barely reaches 10MB/s
I am using a ac56ru rotuer with...

traffic analyzer statistics and torrent performance