Hi,
In JA Wall, each infinity scroll load, it will load a page. So you can set the number of items for each page load.
When the webpage load, those items in first page will be loaded.
The number of items in each page can be set with:
If a field is left blank, global settings will be used.
# Leading Articles
# Intro Articles
# Columns
# Links
This will work with Joomla Standard Content. For K2 content, you can get the same result with those
#Leading count
#Primary count
#Secondary count
#Links count
For example
# Leading Articles 0
# Intro Articles 20
# Columns 1
# Links 0
Thís will load 20 items when infinity scroll load.
One important note: Please set this number of items load is equal to Default List Limit in Global Configuration setting.
Hope this helps.
Regards