PlayStation Ska: Lag Spikes Around Köln Hansaring And Depot

I was playing the ICE and snow scenario on SKA and upon leaving Köln HBF, I got enormous lag spikes. These intensified until I got to Köln Hansaring where it reached its peak and the lag spikes droppen and by the time I was around Köln Müngersdorf/Technologiepark the rate was smooth again. I know DTG has added extra trains in scenario's to make it lively and I encountered a lot of trains departing from Köln HBF.

Then I did the ICE 317 service towards Köln. The only other German route I have is HRR and those services don't translate on SKA, so no layers are active. When I passed Köln Hansaring, I noticed a slight drop in smoothness. This recovered when I entered Köln HBF.

Though these issues are minor, I know, I try to get to the mysterious crashes on SKA. What I think is that the layers cause this. The reports came around the time MSB came out for preserved, so what I think happened was that the layered services, RE 1 & RE 9 and the S-bahn services gives the Köln Hansaring region too much traffic for the console to handle and kicks the player back to the main screen.

I use Base PS4 in mainland Europe and use the English launguage spoken and subtitled. The first paragraph occurred on the scenario "ICE and snow". The second paragraph occurred on the ICE 317 Brussels to Frankfurt service. No layers were active. Thank you for looking into it.