Suggested

Las Vegas Gp

You really can't compare Monaco in real life to the circuit in iGP. The 3D update a few years ago severed any links to reality.

The Monaco circuit length in real life is 3.337 km with, like you say, a lap count of 78.

Before the 3D update in March 2021, in iGP the lap length was 3.34 km and 100% race was 78 laps. So just about the same as real life.

After the 3D update, the layout looked almost identical but the lap length increased to 4.015 km and 100% race reduced to 59 laps.

There is no problem, and no, I don't believe race length is copyright. I just make the point that because the circuits were re-drawn for 3D you can no longer compare iGP to real life and using the same or similar lap count won't necessarily work.

Simply increasing / decreasing the lap count is precisely what was done when the the 3D update was introduced. It had nothing to do with copyright but an attempt by iGP Devs to achieve a reasonable overall race time at 100% distance.

Despite best efforts of the team who introduced 3D, some of the race lengths were way out of kilter when the update dropped. If I remember correctly, Mexico at 100% and 1.0x speed took an eternity.

3D update was introduced 30th March 2021 and because overall race time was wrong the lap count for Australia was changed in June 21 and that of Belgium, China, Malaysia, Mexico and Singapore were all changed in November 21.