Jack
Today, I've tweaked race speeds for a more natural flow. It is not new physics, just an adjustment of the speed.
It's a long story, but there used to be a slight acceleration of races in the Rookie tier so that they didn't go on too long. That accelerator was being applied to the new iGP leagues and hosted leagues in the new system, as they're technically classified as "Rookie" under the hood. This was making top-level leagues run at significantly visually accelerated speeds, exactly what we were seeing.
Singapore does appear to be an edge case that will require a proper review, the other tracks look a lot more natural though.
As of this mornings race in our league, the speed is now 2x, but the league itself is set for the standard of 1.5 - we judged this based on the race time of 44 race minutes being 22 real life minutes. Is there any way we can correct it actually being 1.5x speed?