Performance drop, long loading times when entering a world or opening settings, out-of-sync rendering, heavy graphics, high frame rate drop for basic devices

Even single time when the game updates,i try to play it,and starts to happens long loadings times, when entering a world or opening settings,Performance drop, long loading times when entering a world or opening settings, out-of-sync rendering, heavy graphics, high frame rate drop for basic devices
I have a smartphone with 3GB RAM and 1.5Ghz octa-core