Safari freezing on the iPhone 4 about stroll.js HOT 1 OPEN

When using Atomic Web Browser (paid edition) Version 6.0.1 on iPhone 4 running iOS 5.1 with Atomic Web Browser set to Identify Browser As "Default - Mobile Safari" the demo page takes an unusual amount of time to load and perform poorly when it is finally loaded.

Load time is roughly 20 seconds.
Frame-rate on CSS effects is low enough to where some of the effects are unnoticeable except as a slow-down of the scrolling field.

Attempting to load demo site on Safari on the same iPhone yields Safari unresponsive (I waited 30+ seconds each attempt and Safari appeared to do nothing, but the little 'spinning wheel' at the top of the page was rotating) as OP stated - I, however, could not replicate the freezing of iOS, although it did take about 10 seconds after each of Safari's fits of unresponsiveness to return to the home page after I pressed the home button on the iPhone.

Opera Mini (Version 7.0.1.32694) on the same iPhone 4 loads a demo page that is sorted one 'scroll effects' demo at a time vertically with large gaps of space in between them. The scroll boxes do not function as scrolling boxes - can only view the displayed fields within them statically (making the fields that you would have to scroll to see unable to be viewed). Load time, however, is instantaneous.

from stroll.js.