Speed Issue Deserializing Arraylist Android

Speed Issue Deserializing Arraylist Android

I have an ArrayList allFeeds and a method to read in serialized data.
@SuppressWarnings("unchecked")
public void loadFile() {
final String FILENAME = "feeds.ser";
File file =
fileContext.getApplicationContext().getFileStreamPath(FILENAME);
try {
FileInputStream fis = new FileInputStream(file);
ObjectInputStream ois = new ObjectInputStream(fis);
allFeeds = (ArrayList<Feed>) ois.readObject();
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
Although the ArrayList is only small (about 30 objects) it takes a
considerable amount of time to complete. GC_CONCURRENT repeatedly frees up
memory during the execution.
Is there a way of increasing the speed of this operation, or is it simply
just hardware limitations? If so, would it be advisable to push this into
an aSyncTask or background service?