*******PS3!!!! internet HELP!!******** PLEASE!!!!!!!!!?

ok i pay for 6mpbs from my isp provider but on ps3 i only get 1.5 to 2 mpbs i want 6 mpbs >.< so if you have a Solution please answer im using a router also tried using the modem and still nothing my isp is fine tested it on my computer 5.5mpbs so its just on PS3 i have nat type 2 so that's not the problem ok that's it thanks for any help