Player not developing - any advice welcome

[Blue Down Under]

I use FMRTE to check players' CA and PA and have a 24 year old newgen striker who has a PA of 192 and CA of 182. He has been at my Chelsea team with 4.5 and 5 star coaches for 6 years and in that time developed slowly but surely through under-21s games, loans and squad rotation.

For the past 2 seasons he has been my first team striker, starting an average of 40 games and being the sub in another 15, and played quite well without being Haaland-level amazing.

When I first bought him at 18 for 2 seasons I gave him an additional focus of quickness as he was a bit slow and I like to play with fast strikers, and that worked well. He currently trains as an advanced forward at double intensity and has generally responded well to this and my staff see no issues with his training schedule or commitment.

My issue is that despite playing the majority of the games and training well,  his CA has remained at 182 from August through to April of this last season and his stats have remained largely the same.

Any suggestions for how to kickstart his progression would be gratefully appreciated!