Thank you for your suggestions!
What surprised me was how terrible TRS19 works compared to TANE. I can play with good FPS and no stuttering, using the same maps (UMR 2019) for example, and with higher settings. Any idea why that may be? I was under the impression that performance is actually better for most in the new version.
The sliders are a bit different, but the same. The set-points, I suppose they could be called, read the same but the settings are a bit lower. I discovered this myself with my own machine. You may have to adjust things down or up a bit to get that right balance for your machine since your GPU is different from mine.
Here's the settings I use for my machine. Try these as a base and work up and/or down from here:
Shadow quality:
High
Main shadow resolution:
4096
Shader quality:
Standard
Texture detail:
High
Post processing:
High
Water quality:
High
Detail scenery:
Clutter+TurfFX
Antialiasing:
8x
Detail update rate:
High
Check boxes:
Check only Process objects behind camera
With your machine, I would be inclined to set the shadow resolution down and shadow quality down to medium, and set the Post Processing to medium or low.
In-game settings:
Run your draw distance at 4000 to 8000 range. This generally works well in busy areas with lots of detail. If you think about it, it's not worth using a long draw distance if there's nothing to see out there, and you're only making your video card and CPU work harder.
Check box for Process Objects Behind Camera
other settings.
Scenery Detail:
Normal
Tree Detail:
Normal
Post Processing:
High
In addition to this, also follow the advice given on the antivirus. We've discovered this the hard way over the years. Antivirus programs salivate as each data file is opened. You see Trainz data, from any version for that matter, gets decompressed and loaded on the fly. As each and every archive and folder is loaded up, the antivirus program will scan that data causing poor performance.