I live in Brazil and bought the 32gb LTE version. Using it for a couple days and noticed occasional lags even with the theoretical faster Snapdragon.
I also own the Note 8 with Android 4.2.2 and it has a far more fluid experience, everything feels snapier. I think the cause of the 10.1 2014 lags are simply poor optimization.
The Note 10.1 2014 seems extremely bloated, and for now I'm stuck with the MJ6 firmware. I don't want to loose warranty because of knox. I'm still figuring out a way to update the firmware to a newer build, but can't find roms compatible with the 605M. Looked for official updates at Sammobile but for this model there are no new builds.
I read somewhere in the forums that newer builds for the 2014 edition are lag free. Also the 2 second wake up lag are gone.
Sent from my SM-P605M using XDA Premium HD app