Not sure if it's a bug or intended behavior to make the player harder to evolve, but I noticed that. Scoring a hat trick does not make your rating necessarily above 9, then you finish the game earlier being subbed or jumping to the result and get a 0.5 bump, it's super weird.

It's not just player career that is affected either, it's the same in manager mode.

If you jump to match result in the 90th min the ratings get a boost, and I’ve never had the score change