Netflix through Xfinity Apps vs. SmartTV app

All apps, like Netflix and DisneyPlus, when accessed through Xfinity > Apps are significantly slower to load at each step (eg, load app, select account, navigate menus) than going straight to the app through the SmartTv app (eg, Samsung > Netflix). Using the SmartTv app is nearly instantaneous with response time, BUT I have to use the Samsung remote instead of Xfinity, which is annoying. Why is Xfinity slowing the apps down so much? Can anything be done to fix this?