i have a klistview widget and a klistviewsearchline, that is connected with the listview. no other slots are connected with the searchline.
the listview contains ~15000 items (in subfolders).
the first time one enters characters into the searchline the entire applications "freezes" (stops responding) for aprox. 20-30 seconds, then the results are shown and all behaviour is normal. i can change the filterterm continously without any slowdowns.
i have no clue what the problem could be

thanks for any help!