Why are Netflix and Prime apps so slow?

[OrangeMarker]

They run much faster through my ROKU TV than my Comcast box.  It's the same internet.  Why?

[CCAndrew]

It’s not the same app or internet as on your Roku, they are cloud based through the X1 boxes. Most of the time it’s a box reset or signal issues as the cause

[andyross]

Which cable box do you have? I have an XG1v4 Comcast box, and a Roku 4. I find the apps themselves to run roughly the same speed as my Roku. The Comcast box typically starts them up faster, though.