The ghost ship one I just posted took 18hrs 15minutes to render, broadcast at 640x480. Usually I leave things like that to render overnight, stop them in the morning, save the half finished render and the .vue file and start again at bedtime. But when I tried that with this one the render would not resume, (I have no idea why) so in the end I despaired of ever getting it done unless I just left it to run. I let it have the computer to itself for the 18 hours it wanted.

There is only one volumetric light in that one (the light rays) but the ship, which is where it took the time during anti-aliasing, is made of transparent, reflective, luminous material and that can slow rendering a lot. I once did an ice cave in Vue3.1 which took 42hours - a week of night renders - but Vue 4 seems much better for render times.