[Bug] Tesla Coils cause periodic FPS drops every 5–7 seconds when powered, even while idle

Hi,

I found a reproducible performance issue with the Automated Defense System: Tesla Coil.

Context:
- Map: Elysium
- Mode: Open World
- Location: F13 uranium mine outpost
- The stuttering appeared after finishing this mine/outpost.
- I normally play with mods, but I also tested without mods and the issue still happens.

Test results:
- Tesla Coils not powered: stable around 112–121 FPS
- Powered Tesla Coils: FPS drops start around 8 powered units
- 35 powered Tesla Coils: FPS can drop from around 112 FPS down to 41 FPS
- The Tesla Coils are only powered/on through the electrical network
- They are not firing or actively attacking
- No enemies nearby during the test
- FPS drops happen every 5–7 seconds
- Drops continue even when I move far away from the Tesla Coils / mine
- Cutting power stops the issue
- Reconnecting power brings the issue back

PC / settings:
- CPU: Ryzen 9 7900X
- GPU: RTX 4080 Super
- RAM: 32 GB DDR5
- Storage: SSD
- Resolution: 5120x1440
- Graphics API: DX12

This does not feel like normal low FPS. It feels like periodic frame-time spikes linked to powered Tesla Coils, even while idle and off-screen.

Because the drops happen every 5–7 seconds and continue regardless of distance, this may be related to idle target scanning, periodic automated defense logic, electrical network updates, VFX/audio ticking, or global Open World actor updates.

Expected behavior:
Powered Tesla Coils should not cause recurring FPS drops every few seconds while idle, especially when they are not firing, no enemies are nearby, and the player is far away.

Please investigate Tesla Coil idle performance / periodic logic when multiple units are powered.