如何在不影响CPU的前提下向IE中添加大量的HTML

i've been experimenting with a more ajax approach to loading data on a page, mostly to avoid postbacks. i can easily acquire server-constructed html via an ajax call and adding it to the dom is simple enough with the help of jquery's .append or .replaceWith. both of these methods are extremely fast in chrome/firefox but terribly slow in ie (7,8,9). i've been experimenting with a more ajax approa