As soon as I add ai the game will not load into an event. My system easily runs everything from iRacing, ACC, AC in 4k 100+fps with ultra settings. Raceroom in practice runs like a dream. But it is completely no bueno when trying to start a session with AI.
can you give your full system specs , cpu,gpu,ram, os and hardware/controllers... keyboards wheel pedals etc (its a good idea to add all this to your signature) can you tell me what car and track combo you were using , a screen shot of the launch screen would help Andi