I think Codemasters are aware of this but in case not..
A detailed description of the issue.
The test below is running version 1.09 but since launch the Beginner Friendly mulitplayer option has been essentially unusable due to how long it actually takes to get into a race. Below is a video example from today to give the idea. Relevant timestamps in the video are that at 00:05 I clicked to join a Beginner Friendly race; at 8:11 I get to start the OSQ lap; and then at 16:24 I am fin