Note 4 camera slow motion issue

Hi, there is something wierd i am experiencing with my note 4. The quality of the video pre n post going into slow motion is very poor. Its very framy like its running in 10-15 fps before the slow motion starts n after the slow motion ends n the video starts to play at normal speed. I also took a slowmo video on my note 4 n transfered it to galaxy s6 n after the rendering the video was smooth.

I also saw a couple of slowmo video taken from note 4 posted on youtube n they too were framy.
Please help