# Movie clip slows down

**URL:** <https://forum.kirupa.com/t/movie-clip-slows-down/183661>\
**Category:** Uncategorized\
**Created:** [March 29, 2006, 2:13am UTC](https://forum.kirupa.com/t/movie-clip-slows-down/183661 "2006-03-29T02:13:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![veraxoxo](https://avatars.discourse-cdn.com/v4/letter/v/f19dbf/32.png) [@veraxoxo](https://forum.kirupa.com/u/veraxoxo)\
**Post date:** [March 29, 2006, 2:13am UTC](https://forum.kirupa.com/t/movie-clip-slows-down/183661/1 "2006-03-29T02:13:16Z")

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I have a movie clip consisting of movieclip images fading in and out in a kind of slideshow.  
What I’ve noticed is that after a certain number of frames, the tweening becomes jerky and really slow. So I split it up into a few separate movie clips and this seemed to help.  
BUT, when I view the movie on an older machine with a slightly slower connection, the whole thing is so s l o w and really jerky.  
I’ve seen other websites do this same kind of fadein/fadeout transitioning and it is not slow and jerky on the older machine.  
What am I doing wrong?

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**Author:** ![dreeft](https://avatars.discourse-cdn.com/v4/letter/d/5f9b8f/32.png) [@dreeft](https://forum.kirupa.com/u/dreeft)\
**Post date:** [March 29, 2006, 5:00am UTC](https://forum.kirupa.com/t/movie-clip-slows-down/183661/2 "2006-03-29T05:00:27Z")

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Depends how complex the transitions are. Could you post a sample online?

Upping the frame rate might help, but it could just be that your tweens are causing a major memory hog at certain points. You may want to consider re-thinking your transitions. Doing them in AS will certainly some of your issues.

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**Author:** ![veraxoxo](https://avatars.discourse-cdn.com/v4/letter/v/f19dbf/32.png) [@veraxoxo](https://forum.kirupa.com/u/veraxoxo)\
**Post date:** [March 30, 2006, 1:45am UTC](https://forum.kirupa.com/t/movie-clip-slows-down/183661/3 "2006-03-30T01:45:15Z")

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> [@dreeft](#):
>
> Depends how complex the transitions are. Could you post a sample online?
> 
> Upping the frame rate might help, but it could just be that your tweens are causing a major memory hog at certain points. You may want to consider re-thinking your transitions. Doing them in AS will certainly some of your issues.

The transition are simple motion tweens on the alpha value (0-100 and 100-0)  
If I use AS will this be better?