FPS drops in certain cockpits, tanks, and near water after July 11 update

After the update on July 11, 2025, I started experiencing noticeable FPS drops in several specific situations:

Tank Engines: Looking at the rear engine sections of many tanks (even destroyed ones) causes FPS to drop to 50–70, even on the lowest settings.
Water: Flying low near water or looking directly at it can cause FPS to drop to around 40.

Aircraft Cockpits: In
planes like the Su-39, FPS drops to around 60 in cockpit view. This doesn’t happen in all aircraft — for example, the F-16 and A-10 are fine, but the F-18 shows similar issues.
Camera Views: FPS drops also occur when using zoomed-in views (sights, binoculars), and in some cockpits depending on which direction the aircraft is facing. In some cases, the issue also appears in third-person view.

These performance issues happen across all maps and with many different vehicles.
What I’ve tried so far:

  • Switched between DX11 and DX12 (no improvement)
  • Set all graphics settings to minimum (no effect)
  • Cleared game cache
  • Reinstalled the game (both standalone and Steam versions)
  • Tested across multiple maps and scenarios — the issue persists

Engine: https://youtu.be/3rBe0EQqZLU
Cockpit: https://youtu.be/0jt3ODmZInA
Water: https://youtu.be/YtKt0_9DDFk