AI starts are terrible and 2 stop, 3 stop pre race strategy wrong tyre wear.

AI starts are terrible I can overtake 2-3 cars with no overtake and let's not talk about the first corner were you can overtake 5 cars.. 

 Why the game suggest me 2 stop and 3 stop?? Top team do 1 stop and everyone else do 2 stop. Well obviously when the game suggest 2 and 3 stop, the tyre wear is wrong in the strategy. I just did a GP in canada and 15 laps with medium should give me 74% tyre wear when I looked pre race for the strategy, well I wasn't close to that 74% tyre wear. Same for hard I went 20 laps and not close to 74% tyre wear.. 1 stop was the clear winner. They suggested me 10 laps medium, 11 laps medium, 14 laps hard and let's not talk about the 3 stop strategy..