how can i change the scroll delegate? or use paging?

[alighodrati]

i have 2000 text data and image for view in ggmgridview.
gmgridview is very slow with there.
how can i load data with paging?
i want when i touch grid to right or left ,load new data and show them.
(my gmgridview fill by XIB file)
u can see this gmgridview with data in my program in following link
https://itunes.apple.com/us/app/ptc-iorder/id549803246?ls=1&mt=8
please help me,tanx