Hi!
My device is TP-Link TL-WR1043N v1
Connection is PPPoE, most setting are at default values (so no QoS)
I recently updated to 1.7.0 and I noticed that my torrents are no longer downloading as fast as they used to be - they never exceed 5Mb/s with 1.7.0 while with 1.6.2 I used to get 8-10Mb/s.
To check it I reverted to 1.6.2 - I'm downloading 9Mb/s right now.
Plus, with 1.7.0 it's really noticeable that torrent is running when you browse - pages load real slow.
Also, when torrent speed exceeds 4Mb/s web admin effectively stops working - it just loads forever, and with 1.6.2 it works for me when DL speed is near 9Mb/s (well, it's slow, but still works).
Also, I noted that CPU load is higher on 1.7.0 - it was something like 4.0-4.5 @4Mb/s and I now have something like 2.0-2.5 @ 9Mb/s