Smooth motion...

For one of our clients i made a 3D animation using the game enigine so he can click to the next scene etc.
I made all textures 256x256 and it looks good.
When i test it While working in blender it runs great, and smooth.
But when i save the project as a “full screen” 1024x768 EXE without border, it runs a lot less smooth
When i save the runtime without using the full screen option it also looks great and smooth.
The problem is that my client (and myself) don’t like the bar on top of the screen, but i must run smooth.
What can i do?

Best regards,

Scotch
:-?

Get a better graphics card/computer