-log in your ADSL modem
-click ADVANCED tab
-mouse over "Network Tools", click "Quality of Service". Just click OK for the prompt dialog
-click Add
Make this setting
-Traffic Class Name: my_web (don use spacebar)
-Assign Classification Queue: wireless&Prece 1&Queue 1
-Protocol: TCP/UDP
-Destination Port Type: Single Port
-UDP/TCP Destination Port (port or port:port): 80
click Apply
-click Add again
-Traffic Class Name: my_p2p (don use spacebar)
-Assign Classification Queue: wireless&Prece 8&Queue 8
-Protocol: UDP
-Destination Port Type: Port Range
-UDP/TCP Destination Port (port or port:port): 1024:65530
click Apply
you might need to restart the router.
FYI, the web browsing is MORE responsive, but if P2P is heavy web still slow.