Don't prefer TCP connections over uTP.

src/qtlibtorrent/qbtsession.cpp

@@ -491,10 +491,7 @@ void QBtSession::configureSession() {
   sessionSettings.enable_outgoing_utp = pref.isuTPEnabled();
   // uTP rate limiting
   sessionSettings.rate_limit_utp = pref.isuTPRateLimited();
-  if (sessionSettings.rate_limit_utp)
+  sessionSettings.mixed_mode_algorithm = session_settings::peer_proportional;
-    sessionSettings.mixed_mode_algorithm = session_settings::prefer_tcp;
-  else
-    sessionSettings.mixed_mode_algorithm = session_settings::peer_proportional;
   sessionSettings.connection_speed = 20; //default is 10
 #endif
   qDebug() << "Settings SessionSettings";