So - the viewport render buttons are gone from 2.8 … unless they’re hiding somewhere.
Eevee renders a LOT faster than cycles or internal, but it still seems to take around 2 seconds to render a frame for me… it’s going a lot faster in the viewport - even if the screenspace reflections are a little dithered looking in the viewport. 2 second per frame is really fast, yes, but … it’s not realtime. Are the viewport render buttons coming back please?