cha.. tak se mi to podarilo opravit.. postupoval sem podle tohoto "navodu" nechapu jak ale mam zpatky sve FPS (teda ne uplne jako na season 4) ale napr v gulagu mam zase 140FPS. Lita to ted kolem 80-110.

Kdyby nekdo mel zajem tak muzete zkusit : Dulezite VZDY NECHAT DOBEHNOUT INSTALACI SHADERU A NA NIC NESAHAT + nastavit optimalni nastaveni HRY v geforce XP (pak ve hre si to muzete nastavit zase zpatky) - nechapu jak todle muze fungovat ale funguje.
zde kroky:
open the NVIDIA Experience and reinstall the driver then reboot your system. Run the repair/game scan from Battle.net settings and launch the game when it finishes don't do anything just let it launch and install the shaders once it says installation complete quit the game and open the NVIDIA Experience again. Apply the game optimizated settings from the game menu in there, relaunch the game and let the shaders install completely again without entering any menus just let it sit and install. Once that's finished open the game's option menu and under graphics make sure your VRAM isn't in the red, if it's not verify that your render resolution is 100 and not 66 and that the game is in Fullscreen not Full Screen Borderless. If it's 100, you're in Fullscreen and your VRAM isn't in the red you should be ok.
If the Render Resolution is 66 and you're in the red there's an ini file under c:\users\yourprofilename\Call of Duty Modern Warfare\players
Called adv_options.ini open it and lower the VideoMemoryScale to like 0.75 or 0.80. Re-apply the optimized game settings from the NVidia Experience and relaunch the game letting the shaders install fully without entering any menus.
Definitely always allow the shaders to install fully before fucking around with any game menus everytime you launch the game from there forward.
This was the only thing that fixed my FPS issues with Warzone now the game runs smooth even on my laptop.