The idea is that you can´t rack up decent XP with a bad team so your´re forced to be not as bad
You can always grab a friend to play with, form a fireteam and try to do something useful like getting supportstations or something like that.
I still don´t see the crowded thing in the HUD, looks normal to me. Life, Objectives, Weapons, Equipment, Kill-Log, Minimap, Messages. Nothing special there as far as I´m concerned and you do need all that info anyway. Which parts would you get rid of?
The main thing with Rage is the graphics, right? No wonder it doesn´t do anything for me