Low res render view and video but not on work view

People of the internet, I need your help.

I imported a 3d fbx object that looks great in working view, but in render view looks like 8 bit, same with any type of exported video. I´m not having perfomance issues in either view, and my pc is hanging in there fine, Core i7, 8gb ram, gtx970.

Thanks in advance, this is driving me mad!

What is the Antialiasing Quality setting at under the Advanced tab of Layer Properties?