Originally Posted by krelvinaz
Other than the OEM battery has NFC built into it, I really don't see how you get lag from a battery. but perhaps that is the relationship?
Here the battery I got
EC TECHNOLOGY® New High Quality 3200mAh Li-ion Battery For Samsung Galaxy Note 3
Just noticed you are right it has no NFC replacement built in but is that the only reason because I dont use any NFC features and the phone literally is like 2 times faster no lag input what so ever.