If you are on 4.3 then this is a known issue with the kernel. A search would have found you the answer, the BMK2 kernel from the Chinese release, which also cures wake lag.
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Note: This quote doesn't automatically apply to everyone, decide for yourself if it might apply to you.
Originally Posted by justruss
What has this place become?
It's essentially a few people graciously answering the same repeating of immature, lazy, demanding questions from the masses.
Nobody searches. Nobody reads the first posts or titles of threads. Nobody even looks at posts a couple above their own.