Game lagging a lot when spawning using object spawner

hi guys
I’m currently using a object spawner extension to do spawners, they work fine most of the time, but when it tries to spawn a specific object 1 time, the game goes like 1 fps

this happens only when the spawner spawns it, and the object isn’t using any effects except shadow, could this be my pc, or the game itself? i’ve tried removing pixels but nothing working.

thank you.

You might want to enable the debugger and see how many copies are created on the stage.