Severe performance bug on PC.

Hardware:
- HP Pavilion Gaming 16 laptop
- NVIDIA GTX 1650 (4 GB)
- 16 GB RAM
- Windows 11
- 60 Hz display

Issue:
Game runs fine initially, then GPU usage spikes to 100% while clocks and temperature remain normal (~66°C). FPS drops permanently to ~10 and does not recover until restarting the game or resetting GPU driver.

Tried:
- FPS cap
- VSync
- Shader cache cleanup
- Different NVIDIA drivers
- Power/performance modes
- Borderless window
- OMEN Gaming Hub

Problem started in EA FC 26 and also existed in FC 24.
Likely VRAM / power-state handling bug on GTX 1650 laptops.