Hello since Minecraft 1.10.0 came out officially and had an error recorded in all my worlds survival and creative

1. When creating a world, collect wood, apples or enchanted things, when opening the inventory it takes about 3 or 4 seconds to open the inventory of our character even happens in the services
2. This annoys me because I'm playing with friends in xbox life, we're mining or fighting against the ender dragon kills me for this inventory bug porfa ask me to solve it

3. Another mistake is with the water and the enchantments, when boy to submerge under the sea, the screen turns black, I do not see anything forcing me to go out and see what is under the sea ,  When I want to enchant my iron peak and see what it is going to give me, it does not give me anything of efficiency ot fortune 

Pleas fix this bugs thanks