head to head
New Star Soccer 5 asks more than Grand Theft Auto V, and the gap is optimization.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Optimization · Practiced Mastery
A football career sim balancing on-pitch aiming with off-pitch life management.
Grand Theft Auto V leans Execution (Practiced Mastery); New Star Soccer 5 leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Driving and shooting demand decent inputs.
New Star Soccer 5
Aiming shots and passes needs some precision
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
New Star Soccer 5
AI opponents don't adapt to model your play
New Star Soccer 5 leans clearly harder on variance.
Grand Theft Auto V
Some mission and lobby randomness.
New Star Soccer 5
Match outcomes and life events have randomness
New Star Soccer 5 leans clearly harder on optimization.
Grand Theft Auto V
Heists, money loops, builds learnable.
New Star Soccer 5
Managing skills, relationships and career choices is the core
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.