Struggling to render

Small update, but as my projects become wider in scope and as I make more and more complicated scenes the render times on my projects have become obscene. I Ill still try to render 4k projects but i've reached a point where one frame takes 2 hours. I will start to render projects in 1080p to try and speed things up, this upcoming Freya will still be in 4k but it will take some time.