the line is one thing, the other thing is depending on where u live, the node in ur area might have too many users leading to congestion. it is still TMs fault of not providing the proper capacity lines and routers etc. we're still using 10yr old equipment (if the conspiracy is true that is :p not i say one, syhhh)
my area is relatively kampung with not many streamyx users (yet)... the speed is... fuh! :D :D :D (i guess not for long but.. enjoy it while it lasts!)