[android-developers] Fragments slow to load when coming back

Hello! 

Here's the situation :

I have a parent activity that have 3 fragments associated with it. Basically, there is the actionBar and three tabs. Each tab holds a fragment in which there is a listview.

The data are the same for all the 3 listviews, just filtered in different way so, in the parent activity, I call a webservice to fetch the data and then I push the data to all three fragments and populate their listviews.

When I select an item from one of the listviews, I land on another activity. The PROBLEM is, when I come back (to the activity with 3 fragments), there seems to be a lag from the moment I push the actionbar up button and the activity loads. Tough to explain, but when I hit the up button, it stays selected for about 2 seconds and then switch to the activity.

I'm using setRetainInstance on fragments...other than that, I don't know what could be the cause.

Do you have any idea? Anything common about using fragments and coming back to this activity after leaving it.

Thank you!

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