Well I finally upgraded from NTL's 150K service to the 600K service yesterday

Download speeds are the main benefit... Massive increase from 20K/sec to 75
Thing is, web browsing doesn't feel much faster. Faster, yes, but certainly not 4x faster. It just feels a bit unresponsive

Is there any tweak in Windows to improve anything? Could the fact that it has to go through a gateway PC and 10Mbit network affect anything like latency?