Yeah, so so the drive from Emeryville to Roseville is about 2 hrs via train or car, the car generally being a bit faster, the vast majority of the difference in time takes place from Roseville to Truckee, where the modern Freeway has had significant earthworks to provide a drive that can take place in about an hour, wheras the train takes a much older route that is both longer and ends up having a max speed much closer to 30 mph.

Additionally Amtrak doesn't have right-of-way on those rails, so delays due to freight trains are super common on that section of track.