Restore object position when its culled in LODGroup

Hello,

i have big problem with my game. Im creating car game where you can destroy objects. I have trash bins, lamps, benches etc. Im using LODGroup because Im using rigidbody, so I have 2 same objects, but 1st has rigid, 2nd doesnt have.

It works great, BUT, i want to restore their position and rotation after you leave some area. Im using colliders which are used as triggers. Big problem is when you first start scene. There is huge lag because of colliders. It takes some time so this method is not so good.

So i got idea to restore them after they are culled by LODGroup. Problem is, that I have no idea how to get info from LODGroup that object is currently culled.

Do you have any idea how to resolve this?

Also my game is for mobile, so I need performance friendly solution.

Thank you and sorry for my english ;)