first time i've noticed that, the first day i was installed v4 and after started to render a scene i that i make that before. it was take about 30m, and i expected something about 10 to 15 m. I waited to release new stable versions. and in 4.0.2 i tested with a simple scene to compromise.
these are two pictures of rendering time with the exactly same setting. and the exact same result in a same size.
render time
