About the lightning and weather, that might be the problem because I just copy/pasted from TheIsland to my map wich is smaller and it might affect performances. I did the same with weather (and clutters but I don’t think this one is the problem)
I’ll delete those settings and create my own lightning and weather template by following a tutorial on Youtube, that might do the trick, thank you !
And I don’t have custom content, my map is only landscape for now and I’ll add content later (if I can fix my problem of course ;))