gtk and image and memory leak

[Dmitry Met <met sbet com>]

Hello.
I am trying to write simle gtk apllication like screensaver. I have an 
animated gif of size 3.8 megs with 140 frames. I need simple show this 
animationa in one window. After application starts, program gets all 
free memory (300 megs) and runs slowly. I was read all posts contain 
word "image", "animation" and understand that i need big amount of 
memory and good CPU. But what is the basic configuration of computer? I 
need to show in cycle 8-10 animations (animated gifs or jpegs in cycle). 
And maybe matter is that i am use python gtk?
Thanks for any response.