Game Play Laggy

i have a Realm in XBOX ONE when we play the game fails to update. When playing i can see the Cow, Pillager in front of me. I hit it with a diamond sword and nothing happens. It takes about 2 to 3 minutes and then the cow or item i'm hitting finally disappears with no drops. when breaking blocks they disappear and reappear. when second player is with me if i dig a tunnel in a mountain they do not see the tunnel and have to  break the blocks themselves even though i already broke them. Redstone items not updating correctly. We also have invisible mobs that we can't see but take damage from. There is a whole list of issues. Everyone playing is on an XBOX one.