I've read somewhere that two OMSI performance leaves much to be desired. Still, I want to ask.
What kind of PC you need to work well?
I ask, because mine frames much lower when I put 2 or 3 tiles. I can not turn a lot of traffic AI.
It's a shame not to use even half of the game graphics settings.
I7 4790K (4.4 GHz)
16 Gb DDR3 ram
GTX 780 Ti 3GB
WIN 7 X64
I think it's a team more than enough and yet OMSI 2 has a painful performance.