[talmand]

Just to expand, in most cases 30fps is considered the minimum while 60fps is your target. Most people cannot see the benefit above 60fps. As browsers start using the GPU available on the device in hand then 60fps should be easily attainable; unless you're doing something crazy complicated.

[jiggy2011]

I think the problem comes as soon as you need to do any floating point work within the Javascript VM , not sure what javascript FP performance is like but I guess it's not pretty.