I noticed that initial load times for the app and launching the live view took several minutes to complete. (windowscentral.com)
You have a brand new vehicle that is probably still on it's initial load of oil. (mechanics.stackexchange.com)
Fast travelling was the only loading time that was relatively quick but after such a long initial loading screen, it wouldn't be unusual to expect that there would be no loading screens at all for both respawning and fast traveling. (playstationlifestyle.net)