Slow fps during preview on Anime Studio Pro 9

[The Singing Walrus]

Hey all,

I'm having trouble with the fps while using ASP 9 on my mac pro 3,1. The best I get is 10 fps with minimal layers, then it drops to 7-8 fps when using more layers. I'm baffled, because my computer should be performing way better. On my 2008 macbook I get about 16-17 fps for the same file that gets me 8 fps on the mac pro. Here are the specs on the mac pro:

2008 Mac Pro 3,1 2.8 GHz 8 core
14 GB of RAM
ATI HD 5770 graphics card

I have no problem rendering from this computer - it's actually pretty fast. And I also have no problems with any other programs.

Any rough ideas what might be causing this problem?

Thanks!

[sbtamu]

Are you using any AVI uncompressed videos in the animation? Those will really slow a computer down.

[slowtiger]

Very large images or video layers slow down AS during preview. I always rely on the rendered video.

[The Singing Walrus]

No large images or videos in the animation - I'm only using layers that were created within AS.

Could it be my display? I can't figure out why it would be so much faster on my macbook, which isn't nearly as powerful as my mac pro.

Thanks for the replies