LOWEST FPS AND EXTREME LAG

Yesterday i  downloaded fc26 and applied all the same graphics settings that I used in fc25, thinking the game would run smoothly. However, when i started the game i was only getting around 5–7 fps along with extreme lag and input delay making it almost impossible to play. The strange thing is that my dedicated gpu usage is at 99% but I'm not getting any performance i even lowered all the graphics settings to the minimum, but the game still runs below 10 fps and remains extremely laggy. I have tried several fixes including uninstalling and reinstalling the game multiple times but the issue keeps coming back there was only one time when the game ran smoothly but after that the same low fps and severe lag returned fc25 runs perfectly fine on my pc, so i don't understand why fc26 is performing so badly

Does anyone know how to fix this issue? Please