Factorio Forums

My gaming server, 2x 8-cores/16-threads xeons e5-2667 v2s, set to dynamic clocks, and with 256GB DDR3-1066 seems to be faster than my Ryzen 9 7950x with 64GB DDR5-4800 and an ATi RX 580 8GB as sometimes my gamer loses FPS whereas the UPS sticks to a solid 60 (possibly NUMA mode?). My server was created with the intention of running multiple single-core game servers as well. Cities Skylines II can use up to 64 cores/threads and it is having thread thrashing due to how bad the multi-threading is on it. Games work the best with single-core operations.

As a person playing on a potato, whenever my PC can't keep up with the server, it will sacrifice FPS in attempt to maintain server-side UPS.
It looks exactly lke how OP described it. Not being able to run at full 60 UPS locally just confirms it.