Load data one by one

1 . Can you help me ! i make this app and there is error , and the error is because very high data loading at same time can you suggest me how to load data slowly and not load data at same time
2 . how to add search option with list view & image , i am finding solution from past 2 days not getting perfect solution . can you find solution
3 . not getting data in top mods horizontal arrangment

here is my aia
loop mods.aia (3.5 MB)

But I am beginer can anyone suggest me blocks for my aia , how to put up