Im happy now compared to before. Had HD and GTX980. Now its much faster. I remembet waiting 5 minutes before, lol. Second load was maybe 1 minute. Now its 10 seconds second load. First is around 1 minute.
If you're waiting more than two minutes with just yourself on track, that's an issue. If you're running 60+AI at somewhere like Nordschleife, Le Mans etc then don't be surprised that it takes a while