Minecraft constantly freezes for several seconds or sometimes even up to 30 seconds upon doing simple tasks like doing very fast crafting or sprinting fast this happens on my good computer. I can't play in my world without it freezing this usually only happens when my internet connection is not very stable or when I have low battery or when I have it charging, I think the apps needs to be better optimized for computers instead of only for mobile devices. Maybe Minecraft tries to create/load memory too fast. I don't think its lag, I think its some sort bad app optimization or maybe it is.