Neverside

3DS too slow!!!!

I just started using 3dstudio, and I have a problem using files *.3ds , when I import them to my
drawing, like a piece of grass, I make a clone out of it, using the reference option, but after 4 or 5 clones my computer stays too slow! I have an AMD 3700 3Gb Ram 256 Mb Radeon!
Do I have another option to insert 3ds files in my drawing? Please someone help me! I have read a 100 tutorials! And I can't pass through this!
I thougt maybe there was an option to aply a material, being the material an 3ds file... but not.
AND of course trees from Xfrog make also my computer too slow!

hide objects you don't need until final render. let objects be diplayed as boxes. the more polys you have in your scene the slower max will be.