SereneScreen Marine Aquarium Frame rate

[owaters]

I am running SereneScreen Marine Aquarium on OSX.2.3 on an iMac DV 333Mhz (320MB RAM).

The frame rate is pretty poor, at only 10fps when full screen, but when small runs at 30fps.

Is there anyway I can increase the frame rate when full screen? Anything I can tweak?

 

[Decado]

disable the pillar of bubbles and the sound, and maybe stick with one light-setting instead of the animated, and keep those fishes to a minimum

 

[bobw]

I have it on both a desktop G4/1Ghz and it runs fine.
On my G4/400 Powerbook, runs pretty slow, even with these tweaks.