Particle System size problem 2D

I use particle system for my laser when it collides with target. (2D setup) It works very much fine.

I Instantiate particle system first with given weapon, and then move it to position and activate it where weapon hit the object. (2D) This worked for object I tested it with but for example when AI ddoes the same thing, the particle effect/system is so small it`s barely visible.

But all objects are instantiating the same empty object with give particle system attached. So why does one particle system is much smaller than the other? I check their parameter values, it`s exactly the same (Since particle system is one prefab ofc)