How to change IP address without affecting internet speed ???

i have a broadband connection , i changed my ip address using

'; Hide IP Platinum '; , but it really slowed my internet speed many folds . please help me ?????????????????How to change IP address without affecting internet speed ???
you can't unless your on a cable modem (not static), then it changed every week ot so. or use Steganos iNternet annonym. but it will slow you down...How to change IP address without affecting internet speed ???
restart your computer =)
you cant change ip address when connectting to internet

but you can disconnect internet and reconnect
If I understand correctly, you're using a redirect service, which is a remote computer which bounces your internet requests. You connect only to it, it connects to the rest of the internet. Your IP address is the same, but everyone you connect to only sees the ip address of the redirect computer. The only way to speed up the service is to find a faster redirect service- the slowdown is almost certainly not at your end.
You are actually using a PROXY address. Your speed will be limited by the speed of the proxy service. If they have alot of subscribers then you get to share the speed they have available with all the subcribers. So dont be surprised you are slower.

Exactly what are you hidding from? Using your own broadband providers IP address only hurts you if you are attempting something illegal, and it protects you from very little. A good router will offer more protection from a public IP and it wont slow your connection.