[Guest]

Stuttering and FPS lost when flying at low altitude above corals, reefs, shallow water near the coasts are normal in il2. It has absolutely nothing to do with graphic card or the processor (it only varies a little from rig to rig). Problem is bad optimization of the shallow water in IL2 engine, and its anisotropic filtering.

I can only suggest trying another graphic card driver, setting anisotropic filtering at lower value or lowering water settings to 2.