problem with my player skill point gain

Can anyone explain me why my youngest player (name Fomenko, ST, quality 35,5 star at lv4, age 19, market value 1.66m, season wage 78k) always get the lowest skill point gain after either training or playing match.
Example: after streching, Attachment 17374

here's a fast trainer at your level:Attachment 17394

he likely was a youth from several levels above you, the above was a generated player, and one of the fastest you would find.