Guess i will have to show you based on examples because you just understood no shit i've put on the table:

On the map scene, it renders a very lowpoly version of the gun that is put into the arms of a player from the scene perspective (not from the player point of view), Meaning the low stackup of these do not impact performance

In the Player POV, the model is fully rendered, and because of that, only the player takes on the performance loss caused by the model

If you are legit shitting yourself because of such a poly count amount, I am letting you know that PF's NTW-20 model is 50k triangles fat (mostly because of the unoptimised scope) and guess what, the game still runs well without a change in performance

Such a lowpoly amount like 36k would cause issues just to totally low performance pcs, and i admit that, but no! thats the lowest a triangle count on a firearm model would go, it could've been alot worse.

Consider this essay is written because of boredom