Graphics are great, the details are superb. The physics though really lack unfortunately. Both of the EMUs should have camshaft controllers (well, at least their counterparts in the real world), but they don't behave like that at all. It's especially noticeable in the class 5000 EMU (the 2 car EMU with the manually lapped brakes), because you have an ampere meter there. The ampere just stay at the same position the whole time while accelerating, you can even go a few notches down and back up and the meter reacts to that. This isn't exactly camshaft controller behaviour. The diesel train also starts accelerating way too fast. Still, the game is fun and looks really great, but at the moment not really a rival to TSW.
Just tell the boss it's broken, maybe these shutdowns are meant to be. It's a sign from the train gods that it's time for a new PC.
I don't know what you mean. While I don't know how in-depth the simulation actually is, the overall performance seems pretty realistic to me when compared to real life videos. Here is a cab ride video of a 115 series for example. I'd say the driving characteristics - acceleration and delay between handle movement and actual acceleration/braking - looks pretty similar. Here is a video of a KiHa85 as well, pulling out of a station. I'm not sure it's much different in game? Also, the 5000 series does not have lapped brakes in the game. Only the 2-car 115 series (called 1100 series in game) does.
