Board Thread:Game Discussion/@comment-139.194.1.99-20150910173212/@comment-25255992-20150910183937

Look at TSM, there is some information there.

Basically, when you drive at a good level, you force bots go fast so the race is still challenging. But when you retire from the race, into the same race, bots just set a normal time and finish the race. That's my explanation. You will find more around the wiki