这样的状态是不是被 QOS 了？

[ 5] local 192.168.12.2 port 5886 connected to 192.168.20.2 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 408 KBytes 3.34 Mbits/sec 68 9.59 KBytes
[ 5] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec 1 9.59 KBytes
[ 5] 2.00-3.00 sec 0.00 Bytes 0.00 bits/sec 0 9.59 KBytes
[ 5] 3.00-4.00 sec 134 KBytes 1.10 Mbits/sec 0 9.59 KBytes
[ 5] 4.00-5.00 sec 0.00 Bytes 0.00 bits/sec 15 7.20 KBytes
[ 5] 5.00-6.00 sec 133 KBytes 1.09 Mbits/sec 0 9.59 KBytes
[ 5] 6.00-7.00 sec 0.00 Bytes 0.00 bits/sec 0 9.59 KBytes
[ 5] 7.00-8.00 sec 133 KBytes 1.09 Mbits/sec 0 9.59 KBytes
[ 5] 8.00-9.00 sec 0.00 Bytes 0.00 bits/sec 0 12.0 KBytes
[ 5] 9.00-10.00 sec 0.00 Bytes 0.00 bits/sec 10 9.59 KBytes

[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 808 KBytes 662 Kbits/sec 94 sender
[ 5] 0.00-10.22 sec 512 KBytes 410 Kbits/sec receiver

两端都只有 IPV6 公网（移动大内网），改了 MTU 1280 也不行，是不是 UDP 给 QOS 了？各位 18CM 彦祖给点意见，谢谢了！能用其他办法解决吗？只是两个房子解决通问题而已。