DS 4.6 Render Speed.....

Is there anyway to get Daz Studio to not slow to a crawl when rendering transparency w reflections?
At the default Max Ray Trace Depth of 8, it nearly comes to a stop. Reducing to 4 helps, but doesnt look quite as good.
This is on my Mac Pro with 8 cores.
Thanks
Comments
Raytrace is the number of bounces a ray does, I have mine set to 2 in case of reflecting surfaces ...
I like Syndarils render presets: http://www.sharecg.com/v/57250/
Or read through this thread: http://www.daz3d.com/forums/discussion/15210/
Yeah, just seems awful slow. Specially compared to Lightwave or Poser render speed.