Its okey.... i would recomend you to maybe use a better engine than unity.... like UnrealEngine. it would make your game run much smoother, it would loke more amazing and not like shit. no offence.... :/

You should try making the game in a different game engine that runs smoother. And put a little animation to the charachters like blink on eyes os something like that to make them more alive and less like statues...
hope this war helpfull