Late loading content via AJAX - impact to bots

[NicB1]

Hi,

In an attempt to reduce the latency of our site, we are planning on late-loading all content below the fold via AJAX.  My concern is Googlebot won't see this content and won't index it properly (our site is very large and we have lots of content).

What is good for our users is not necessarily good for bots.  Will late loading AJAX content be read by Googlebot?

Thoughts on how to balance speed vs search engine crawl-ability?