He always had that burst of pace and quick feet to open up an angle for him to shoot, mainly cutting in on his right, now he's super predictable as he's slowed down...it must be really easy to defend against him.
When we play/played possession football, pushing opponents back into their third he is/was always less effective. Best season came under Conte iirc. His minutes on the pitch and goals were always less under Poch, for that reason.