How to create slow render

Hi,
I am absolutely beginner thinking of UE as the tool which will help me achieve high quality renders, mainly for landscape stills. I am using right now VUE from eon and C4D.Both are great but VUE is very slow in render and C4D is mainly for motion graphic design.
I know that UE is very good in real time renders, but there is very limited in therms of polycount, or even high res textures.
I would like to ask you if UE offers something as “slow” render,where I will not be limited in use very high poly 3D models, textures ….?

Thank you very much.
K