Open registry editor by going to Start then Run and entering regedit. Once in registry, navigateto key HKEY_CURRENT_USER\Software\microsoft\Windows\ Current Version \InternetSettings. Right click on the right windows > New > DWORD.
Type MaxConnectionsPerServer > You can set value (the more higher the no, the more good speed eg:99). Create another DWORD >type MaxConnectionsPer1_0Server. Then put a high value as mentioned above. Restart I.E and you are done.
"Windows XP Tips: Internet Explorer As Fast As FireFox"
Reference : techpraveen.com
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