When driving in career mode on dry conditions you are competetive with the AI cars regarding track performance and grip level.
Somehow when the conditions change the AI cars drive without any effect from the weather condition (no spins, no nervous rear, etc) but you have to fight like hell to keep the car on track. Even on the straigts the AI cars are much faster.
I guess the alarm bells will ring for the whole community when working on the performance (see performance update in F1 24 which made the performance worse) but this performance issue needs to be fixed.