Xfinity app draining my phone battery.

I’ve been noticing my phone battery draining quicker than normal with similar amount of use.  There is a big battery drain even when the phone is. It being used at all.  The app says it is using 49% (most of the time more) of battery usage.  I’ve tried turning off the background refresh and uninstalling and reinstalling the app.  Phone resets and all of the updates.  Still same issue.