"Cab ride in a N700 Shinkansen trainset, from west of Hiroshima towards Tokyo.

Yes, it is laggy, especially closer to the Tokyo area. It is a GPU bottleneck, resultant from playing in 4k resolution with close to 90k buildings and tons of assets, vehicles and trees, results in that. Still, the map itself plays quite well, as long as I stay not too zoomed out and out of the Tokyo area, lol."