There is the file that you requested, i read in the post that you mentioned that you don't investigate modded factorio problem, but we have this problem with or without mod. Pitapippolo.zip is the map I attached the two screenshot, as i said we have this problem every single time, modder or not,and ...

Basically everything, if i build i have to wait like (as i said) 500 to 800ms, fighting is almost impossible and so driving cars.
I enabled the multiplayer statistics and i have 16 to 32 ticks (don't know if it can help).
(latency told by the game)
http://prntscr.com/wgy154

i was playing Factorio with my friends, and our ping was 7/10ms, but i'm experiencing lag as if i'm having 500/800ms (sometimes even 1500ms). We tried playing in LAN (using Hamachi) but we are having the same issue. The more we play the more is going to be unplayable. There is no issue with the CPU ...