Breakable models any fix?

Hi.

In my addon, where you can break standart models, I see very strange problem - when I shoot from the RPG in ANY prop, this prop starts to burn and ignite others props(if welded) or/and gibs. Any explode ignite breakable props.

It’s very LAGgest to me.

It’s can be possibly fixed that? Via lua?

Or it gmod bug?