Android EditText and large amount of text

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http://stackoverflow.com – I work on some application with ability to edit text files. But I have serious problem with EditText. Currently I load text file of size 17KB. I don't think, that 17KB is terrible amount of text. Scrolling is fine, but when I focus EditText and start edit, it has delay/freezing for 4-5 seconds. The same happends when I leave EditText. I'm using API level 8. and here is my layout for edittext : <EditText android:id="@+id/journal_text" android:layout_width="0dip" android:layout_height="fill_parent" android:gravity="top|left" (HowTos)