Hi.
Hm, I´m still with Encore CS3, but I don´t think that CS4 will perform better on the same PC than CS3, and...
...Encore CS3 performance is horrible. Even with simple projects I have to wait MINUTES to open a project, MINUTES to import some menues, and so on! It´s okay when transcoding lasts some time, this is a rendering task, but it´s impossible to wait up to 2 minutes switching back from Photoshop to Encore.
I think Encore is still kind of "simple" software - it´s quite not as complex as let´s say 3d studio max - but it performs like grandma.
My machine is not the newest but it´s a good workstation:
Core2duo 6400 @ 2.40 GHz, 2 Gig Ram, XP 32
There is much to do!
Sascha