BAD FPS IN ANDROID PHONES

Much lag! I always played the 12 chunks in my cell phone never gave a lag! But after the new updates (specifically 1.6.0) I could not play in the 60FPS as I used to play in My android now I only play in 10 chunks because of the lag being that I played the 60FPS in 12chunks in the game! My cell supports up to 20chunks but locking in 20chunks I admit but as long as my 12 chunks without lag do not go back I will not go but play minecraft as before;

My phone: Samsung Galaxy S8 +
-4GB RAM -Exynos 8895 Processor
-64 GB Storage

Thanks for listening