The more you use your app cache builds and can slow the app's response
Weekly - always do a router restart then turn stick off and on at wall once your internet has come back on
Home button on remote - setting - apps = manage installed apps - find your app on the list
clear cache force stop then launch.
AS ABOVE BUT ALSO CLEAR DATA AND CONFIRM
U WILL NEED TO RE-ENTER YOUR LOGIN AFTER CLEARING
DATA AND LAUNCHING APP
IT IS IMPORTANT YOU KEEP THESE SAFE AND ENTER THEM CORRECTLY