OS X :: Laggy Internet, Running Through Server?

im running my macbook through a server running osx 10.5.7. The server has dual ethernet cards, one to connect into the external network and one for my own little network, which just has my macbook on it.ive noticed a very long delay in loading pages on the macbook, it takes about 6 seconds before anything happens and then its good and fast. Happens on every page which isnt cached.

the internet connection is capable of 60Mbps each way so its not the cause of the delay.On the server the internet is 'snappy' and everything is near instant so i belive that the delay occurs in the networkThe transfer speeds between computers are fine and pinging the server from the macbook gets speeds of around 0.2 ms. so i guess the problem lies in how the server handles the internet passthrough