Can you force 1080p when using the XBox app/Chromecasting from Android?

I want to watch RT site videos on my TV, but it seems like any of the 'proper' ways of doing it (Chromecast or the XBox app) are determined to automatically show the worst quality possible. If I watch on a PC and manually set it to 1080p, it runs with no problem whatsoever so it's not a problem of my bandwidth being unable to handle it (250Mbps).

Does anyone know of a way of forcing it to 1080p that doesn't involve plugging a PC into my TV?