[kyungrak]

I don't think there's anything to do with a python script. Since the main cause seems to be accessing the db, you should try to look at your mysql setting as I stated before:

11:57:26 T:139787373938624 DEBUG: RunQuery took 1551 ms for 530 items query: select * from movie_view
11:57:26 T:139787373938624 DEBUG: Saving fileitems [videodb://movies/titles/]
11:57:26 T:139787373938624 DEBUG: -- items: 530, sort method: 0, ascending: true

EDIT: didn't see your reply, sorry. How does your pc connect to your lan, through ethernet or wifi?