the client minecraft even if it receives data from the server does not show them on the screen
For example, I try to open chest or use the items as buttons or levers on the need to use them but the client does not show animations and does not make you open the chest or shows you the contents of the chest after 6 or 7 minutes that you have clicked on it and you are very far from it, or after the classic / spawn or / home teleports you to spawn continuously on the home or

do not say that it is lagg or connection I 6mb / s download and 2 upload