I think e-on's forums are for registered users only. Maybe that is the problem? I am on a Mac G4 with 1 GB Ram and for me Infinite works fine. As fine as other applications like Poser or Cinema 4D. Even with Ecosystems the rendering times are surprisingly low - i find. But this is my personal impression. Rendering times of course depend on so many things that it is really hard to tell wether it is slow or fast. I think someone started a benchmark thing here a while ago. Maybe you do a search for that and see.

One day your ship comes in - but you're at the airport.