IsTrigger Collider2D - horrible FPS drop.

Hi there.

I have Polygon Collider 2D on my enemy Sprites on Is Trigger.

However, once two or more objects collide with each other, and one of them has Is Triggered (So they are inside each other) the FPS drops to less than 20.

I need to have colliders for Bullet Impact, but I want to Is Trigger(Since I don`t want AI to bump or get stuck in objects).

This is specifically with 2D top down space ships.

Reducing Vertices on Polygon Colliders helped.

(From 170 to 6)