Spawning too many entity creating lag question

Is there a way to make a trigger remove certain entity after an amount of time, i have a spawner that creates a rolling ball down a hill, it spawns about 120 of them and that’s probably too many but is there a way to create a delete function for an entity ?
So that once a ball has reached a certain point it get’s removed from map

Use a math_counter, as follows:

Initial Value: 0
Max. legal value: 120

Output: OnHitMax > NameOfPointTemplate > Kill

On your point_template, add the following Output:

OnEnititySpawned > *NameOfMathCounter *> Add > 1(In parameter override).

Should work, hope it helps.