CSX Heavy Haul has become unplayable

Is it just me?
Within 4 or 5 minutes of starting any scenario or service, fps drops from an average of 40 to 1 or much less and stays that way till I kill the game in task manager. I use task manager because hitting esc does nothing. I also noticed that there is now a 4 or 5 second pause when you switch views - except when going from an outside view to back in the cab, that seems snappy.
I tried several services and a couple scenarios with the above issues in all. In addition, the service Q015 Intermodal - Chambersburg to Grafton, which runs at 1:33am if I remember correctly, is now exceptionally dark - so dark, in fact, that I had to pull up about 150 feet next to a floodlight at the start of the service before I could even see any of the controls. The headlights project much less intensely than before and the ambient environment lighting is almost non-existent, the only upside is that now that intermodal cars no longer look like they are lit up and are appropriately dark on the non-moonlit side while being suitably lit on the moonlit side.
Oddly enough, Great Western Express runs fine so far except for the graphic glitches with the wheels and the black bar on some AI traffic. Switching views is lag free, as it was with Heavy Haul before the update.
Within 4 or 5 minutes of starting any scenario or service, fps drops from an average of 40 to 1 or much less and stays that way till I kill the game in task manager. I use task manager because hitting esc does nothing. I also noticed that there is now a 4 or 5 second pause when you switch views - except when going from an outside view to back in the cab, that seems snappy.
I tried several services and a couple scenarios with the above issues in all. In addition, the service Q015 Intermodal - Chambersburg to Grafton, which runs at 1:33am if I remember correctly, is now exceptionally dark - so dark, in fact, that I had to pull up about 150 feet next to a floodlight at the start of the service before I could even see any of the controls. The headlights project much less intensely than before and the ambient environment lighting is almost non-existent, the only upside is that now that intermodal cars no longer look like they are lit up and are appropriately dark on the non-moonlit side while being suitably lit on the moonlit side.
Oddly enough, Great Western Express runs fine so far except for the graphic glitches with the wheels and the black bar on some AI traffic. Switching views is lag free, as it was with Heavy Haul before the update.