I did a cache partition wipe and I still have the same issue. Serious lag when handing off to wifi from cellular.
I am also having the issue where it prefers the LTE network over Wifi Calling. I did a settings reset. Have a ticket in Verizon support but it seems that Wifi Calling is a bit buggy right now. I can force it to do Wifi Calling by enabling Airplane Mode.
Man, my battery's been dropping like a rock since I did the download. I sure hope this isn't the new normal. I always got good battery life previously