Sound-World-GamePlay

I have this bug myself, its only effecting my survival world. Sounds are stuttering game is bit slower than normal. Only effecting my one world other worlds are fine. Ive done everything to try to fix this sound settings ect. Its a big world. 158.5MB BIG. Im hoping its not the world size. I put alot of effort into my survival world. Very good at redstone. Ive been waiting for a bug fix update now im here reporting it.