Server upgrade, tried linux, windows, no go.

Current tasks done:
Killed all biters. - increased 1 ups.
Tried UPS up, removed again.
Removed dropped items. - no change
Game speed reduced to 55% (.55)
Tried force d3d, opengl in windows. - no change
Only used ups up mod for half a day and done pretty ...

Now we have found a better replacement for the server now we're all struggling with clients.

5960X, ryzen 1700, and finally the worst offender here for our gameplay is an i7-6500U...

server is now Xeon E3 1225 V3 where cpu bottleneck occur little over .8 gamespeed.

i7-6500U drops at .6
5960X ...

no shit.
but even all alternatives I have seems to be not up to the task unfortunately...

seems like factorio servers are really hard\useless to host as most servers come with 10+ cores these days and even client cpu's are high core count... hoping they can do multicore soon...
Will try it at the ...

Is this to be expected?

Current server specs:
Ubuntu 16.04 latest updates installed.
Phenom II 1055T
16gb DDR3 1600mhz
It's a vm inside ESXi 5.5
ssd (intel 256 gb something sata)

if I save it and load it, it doesn't really lagg thaat much on my computer but it severely does it on a server I ...