Samsung released Galaxy Note 10.1 2014 in Q3 2013, and it brought significant improvements over the outgoing Note 10.1 model. However, a lot of users have been complaining about the excessive bloat ROM. Also, there is no easy way to root / deodex it.
Fortunately, folks at galaxynotenews have written several useful tutorials, for instance:
Deodexed Debloated Rooted ROM link
TWRP for Samsung Galaxy Note 10.1 2014 link
How to Root Note 10.1 link
By following those tutorials, you will be running a debloated, deodexed ROM on your Note 10.1 2014 edition in no time.