Are you importing the movies or do you load them using th load movie command?
If you use load movie, your movie will play at the speed of whatever movie is slowest. (if 'parent movie' is slowest it will play at 'parent movie' speed; if the loaded movie is slower, the movie will play at speed of the loaded movie)
Here's what I do however:
I create the stage in SWiSH. 800x600
I create the image in Swift 3D - 400x200
I export the image as a SWF file (single frame still) which allows me to import to SWiSH as a sprite with a clean transparency.
I then place the sprite against the stage and animate on top (small, white, light flashes)
Up to this point, it works great. When I add another small SWF file using the same creation method, it slows everything down. I'm only up to 2, I can't imagine if I imported 4 more as I had planned.
Does that help you help me?
We all dream.
The difference between those who are
great and those who are not, is what
we DO with those dreams.
maybe i'm completely wrong, but if you import it, and open the sprite, there must be a shape; try to cut that shape, and paste it outside the sprite, in the scene. Then apply effects on it and see if that helps....