I just got into playing SEHS in the last couple days and I noticed that my FPS seems to be significantly lower when compared to other routes. My FPS on SEHS hovers around 30-70 at 4K ultra settings, so my complaints are not about unplayable frame rates but rather inconsistency between DLCs. I have an RTX 3080, 32 memory, and a 10700K and yet when playing SEHS, task manager shows limited CPU and memory usage and does have GPU usage surpassing 60%. Clearly, if more of the GPU was utilized then FPS would be able to surpass 70 in many areas of the route. On other routes (i.e. LGV, IOW, HMA) I usually get lower FPS (30-60) in places with a lot of OHLE and dense scenery and then get 100+ in most other areas. (I even reach 144+ on LGV). My point is that TSW seems to have a problem with efficiency and utilization of system resources and there are massive inconsistencies between different DLC.