I have a question about the best settings for max speed. I use a Zyxel modem with 20Mbits internet. Now I have a couple of questions:

Which port should I select in FDM remote controll to gain max speed (its currently on 80 but I heard the higher the better, or isn't this right).

Do I need to select ADSL 2MB/s or LAN (I use a cable from my box to my pc but its adsl internet) and what about the ports range?

Also I would like to know if I should enable DHT and what it does?

Lastly when I try to download from torrent sites the download strats but I constantly get the message that he can't connect the tracker (Filed and timeout followed by try again in...sec) what could be the problem there since the download speed isn't going faster then 150kb/s (normal files go with over 1.5MB/s).

And are there besides of those things other settings to speed up downloading (I already enabled Heavy Mode)?
Thanks!