That's understood but the problem is that Open Rails becomes so burdened by heavyweight code that it requires the latest computes to stand any chance...
One reason over in The "Railfan Area" when I upload a video & I'm certain of Its Engineer or Conductor's Name & Very Popular with The Area's Railfan...
Ever thought of doing those MMA F40PHMs? I always liked those( besides their Ex-LMS B40s due to the nice Leslie RS3LR Horns when I seen them on video...