Gapless Playback issue

[Tarafi]

Hello everyone,

So Im having an issue regarding audio gapless playback.
I have an S5 4G+
BlackPlayer EX (full version) does not work like it should, theres a delay between two songs from example Pink Floyd's Pigs and then Sheep
On my tablet, it works fine with the same software and songs.

Yesterday i updated the system to Marshmallow 6.0.1 but it doesnt change anything.

Why is this? Is it a firmware issue ?

Thanks for your help.