head to head
Counter-Strike: Global Offensive asks more than Mortal Kombat Trilogy, and the gap is execution.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.

Execution · Competitive PvP
Classic fighting execution and human prediction atop a famously unbalanced roster.
Counter-Strike: Global Offensive leans Execution (Competitive PvP); Mortal Kombat Trilogy leans Execution (Competitive PvP).
Counter-Strike: Global Offensive leans clearly harder on execution.
Counter-Strike: Global Offensive
Spray control and flick precision at the top
Mortal Kombat Trilogy
Dial-a-combo inputs and run-meter pressure demand fast hands
Counter-Strike: Global Offensive leans a little harder on reads, though the gap is small.
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
Mortal Kombat Trilogy
Human opponents must be baited into unsafe moves
Counter-Strike: Global Offensive leans clearly harder on variance.
Counter-Strike: Global Offensive
Information hidden until contact
Mortal Kombat Trilogy
Movesets are public; nothing hidden in a match
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
Mortal Kombat Trilogy
Knowing the bloated roster's broken tech is half the battle
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.