Similar to Facebook and Twitter you can activate automatic activity loader in your BuddyPress based network. BuddyPress Activity Autoloader is the brand new plugin that automatically activities when a user reaches at the bottom of the page. The plugin just simulates Facebook style infinite activity scroll with BuddyPress.
All you need to do is install and activate BuddyPress Activity Autoloader plugin and it will start autoloading activities when a user reaches at the bottom of the page.
I installed it and when it loads once, it continuously loads more and more until all the activities available are loaded. Any fix?
The plugin is not yet updated for BuddyPress 2.1.1 version.
You should either wait for its next update or report the issue here – https://wordpress.org/support/plugin/bp-activity-autoloader