I have noticed since the last update (2.8.0) that rendering takes much longer now. Specially when rendering panoramas (for cardboard). It now seems to take me what I estimate about 20 minutes to render, where as before it took less than 10 minutes. (Also estimate).
This only started since the last update, and since I just replied to somebody about moving vegetation in the wind, I'm suddenly wondering, is this maybe what's causing it? As that would explain it. However, if that is the cause, it should not be necessary to have wind having an effect when rendering anything other than videos or doing VR as standalone etc. Or what? My guess is the leafs might be changing frames as each frame is being rendered? Which to me would not make sense for a panorama. Other than that I don't know. Just know it takes very much longer now to render compared to before the update. So I thought I would ask.