Xperia M2 dual music bug

[Pranjal]

I recently bought Xperia m2 dual. There's a strange issue with my phone no matter which music app I use, there's a random glitch or rather said a stutter. The playback pauses for a second or so. I'm running the latest firmware and have updated all the applications. Is there any solotion other than factory reset?

[Uliwooly]

@Pranjal

Where is the music stored, SD card or internal storage?

[Pranjal]

In sd card.

[Uliwooly]

@Pranjal

Move some albums to the internal storage > restart the phone > play the albums that are on the SD card and report back. 

[Pranjal]

Okay so I moved an album into the internal memory.. No stuttering. Playback is as smooth as it gets.
Also I did a sd card benchmark.. 24mbps read//5.6mbps write.
Can you suggest a solution to fix it for the songs on sd card?
Thanks in advance. (P.S. I've installed a few apps on the memory card, if it matters)

[Uliwooly]

@Pranjal

Which class is the SD card? any antivirus or taskillers? 

[Pranjal]

Actually I just noticed a stutter on the album that's on internal memory.
No anti virus or app killer.
I am using stamina mode though, but I already made an exception for the music app in the settings.

[Uliwooly]

@Pranjal

Could you test a different SD card?