There are chinese clients known for exploiting certain things within BitTorrent, such as only taking ('leeching') but not giving back ('seeding').
Either you take the way of using the IP filter feature in Tixati:
https://support.tixati.com/settings%20-%20ip%20filter (search for lists on the internet or in this forum)
Or you filter out the specific clients known for exploiting BitTorrent:
https://support.tixati.com/client%20filter
If you find a peer: right click on it, click on 'Properties' and note the Peer ID (the first eight numbers and letters are the client's ID and version number; the latter 12 or so letters and/or numbers are user-specific).
You can use that client ID to filter out users with exactly this torrent client. Tixati 3.33, for example, has the Peer ID
TIX0333-, followed by randomized letters and numbers.
So, if you wanted to filter out Tixati 3.33 (which... wouldn't be of much advantage when using the same client), enter the Peer ID
TIX0333* in the field "Never Allow" in the Peer ID tab of the Client Filter.
If you wanted to filter out Tixati completely (again, same applies...), enter the Peer ID
TIX* in the field "Never Allow" in the Peer ID tab of the Client Filter.
Note that a few clients can spoof their peer ID, so they could get through your filters regardless of your settings.
Other than that, refer to the two support articles I linked above!
