# Speed issues

**URL:** <https://forum.kirupa.com/t/speed-issues/40822>\
**Category:** flash\
**Created:** [January 22, 2004, 8:00am UTC](https://forum.kirupa.com/t/speed-issues/40822 "2004-01-22T08:00:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![pipspeak](https://avatars.discourse-cdn.com/v4/letter/p/7ea924/32.png) [@pipspeak](https://forum.kirupa.com/u/pipspeak)\
**Post date:** [January 22, 2004, 8:00am UTC](https://forum.kirupa.com/t/speed-issues/40822/1 "2004-01-22T08:00:48Z")

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I have an AS movie that does a bit of math… generating a lot of random numbers and running them through movie clips to generate random letters. I’ve set the frame rate to 21 (which translates to 19 on a Mac… close as you can get it seems) but Mac users see everything in slo-mo. Alas, folks with slower PCs also see stuff in slo-mo so I’m thinking it’s the math stuff screwing things up rather than the mac stuff.

Does anyone know of a way to simplify random number generating for slower CPUs to keep up? The problem might also be that there are a ton of math-calculated alpha transitions that I could kill if necessary. I’m also wondering if “setInterval” times are treated differently per computer – some machines seem to treat an interval of 1000 as though it’s 10,000. Is this a function of the cpu speed?

I keep running into speed problems like this with AS and it kinda sucks. A modern day version of the old browser/DHTML display issues. They work fine on my machine, but not everyone has a new PC.