# Multiuser app sync problem

**URL:** <https://forum.kirupa.com/t/multiuser-app-sync-problem/251422>\
**Category:** Uncategorized\
**Created:** [February 8, 2008, 7:25am UTC](https://forum.kirupa.com/t/multiuser-app-sync-problem/251422 "2008-02-08T07:25:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![webreake](https://avatars.discourse-cdn.com/v4/letter/w/90db22/32.png) [@webreake](https://forum.kirupa.com/u/webreake)\
**Post date:** [February 8, 2008, 7:25am UTC](https://forum.kirupa.com/t/multiuser-app-sync-problem/251422/1 "2008-02-08T07:25:12Z")

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hi  
im using red5 to create a chat but currently im having problems with sync between clients , you can see a video demo here : [multiuser demo](http://www.masgdl.com/lab/multiuser-red5.html)

the demo runs ok because all the clients are running locally but when someone with a very slow computer connects the frame rates for that client are slow compared to a client with a new computer and the result is that some penguins move faster than others (better computer better performance in the swf)

so how can i fix this ??

some of my vars that might be of relevance :  
aceleration =.5  
maxSpeed =15

thanks