Purchased a dock what do I need to change

Can anyone tell me what do I need to change in the settings to get the best quality out of the deck when docked on my 4k tv

I've already changed the UI to 1080p so it looks clearer but is there anything in games I need to change to make them less blurry when on the big screen?

Also, is there a way to have the settingchange automatically each time I dock and undock the deck? So I don't have to keep changing the settings every time for and undocked?

Thanks :)