You probably won't see a reply directly. I can only advise you not to jump straight into a service from the menu, enter free roam first and then board the train you want to drive. This eases the work load on the processor within the Xbox One and Xbox One S, as you can see above from my testing. It doesn't remove the delay, but it reduces it. This will need a patch which could take a few weeks, but first they have to identify the problem in the code.