# \[as3\] frame rate browser issues **URL:** \ **Category:** flash\ **Created:** [May 22, 2007, 5:00am UTC](https://forum.kirupa.com/t/as3-frame-rate-browser-issues/226530 "2007-05-22T05:00:13Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![lowdown](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/lowdown/32/3231_2.png) [@lowdown](https://forum.kirupa.com/u/lowdown)\ **Post date:** [May 22, 2007, 5:00am UTC](https://forum.kirupa.com/t/as3-frame-rate-browser-issues/226530/1 "2007-05-22T05:00:13Z")
[http://expectresistance.com/CollisionPlay.html](http://expectresistance.com/CollisionPlay.html) I’m making this silly ‘dodge the turbulence’ game and I am having some frustrating issues. It wants to run at 30fps in firefox and 60 fps in IE. This causes my timers to screw up and launch my little clouds at wrong intervals basically ruining everything in firefox. I’ve read about the issue, and I understand that the plugins are different, but do you have any suggestions as to what I can do to make this playable cross browser? here’s my source, any advice is appreciated. Cheers /edit > Please keep the following in mind when developing with the engine: - The Fisix Engine is currently in alpha version, and is still buggy/unstable… please report all bugs so that they can be fixed quickly - Due to no apparant reason, swf files work about 10 fps slower in an internet browser if the ‘wmode’ parameter isn’t set to ‘transparent’ or ‘opaque’ If you find that your fisix application isn’t running quickly enough, try sure to change the wmode parameter in your html file (A word of caution, wmode-transparent is known to cause some random problems in firefox) - For some reason, AS 3.0 timers are a bit choppy, so instead of using FisixEngine.startEngine() (which uses a timer) use FisixEngine.mainLoop(dt) within an ENTER\_FRAME event listener. - Have Fun with it! This was in the docs to the fisix AS3 physics engine. Solved my problem.