Instantiating blender Gameobjects creates serious lag

In my game, I instantiate a new animated object (from a model created in Blender) everytime a user clicks a button(to summon a warrior). I end up with a lot of animated objects on the field and the game moves really slowly, sometimes not at all and quits. I'm wondering is there a better way to represent all of these animated objects that wont cause the game to lag, or a way to optimize my animations?