How to speed up Netscape 6.1?

Hello SuSE folkz, I started to use Netscape6.1 instead of Netscape4.x Every time I start Netscape6.1, it comes up in about 3-5 minutes which is painfully slow. Even Mozilla, which is derivative of Netscape, comes up in a matter of seconds. I'm pretty much sure that it is a matter of Netscape6.1 configuration. Could somebody give me a hint what should be changerd in Netscape6.1 confuguration or settings to speed it up? Thank you in advance. Alex