Stream app needs to be fixed!!

It is not a television issue which are new, smart and LG’s. Our router is new and more than adequate.  

The app is SLOW.  When I finally get to a channel if I go back to previous channel, THREE DOTS just keep spinning.  TV has to be turned off and on to watch.  This occurs on BOTH smart televisions.  

There is NO PROBLEM with any other apps.  

Xfinity Stream shouldn’t have rolled out until it was ready.  The longer we have it the glitches get worse.  

We don’t want to use boxes again and pay more money.  Since ALL other streaming apps work fine, what is Xfinity doing to correct it?  Calling CS doesn’t help at all.  

 Shouldn’t be this difficult to watch television.  Please advise!!