Lords of The Fallen - Nukem9/dlssg-to-fsr3 GitHub Wiki
You have to disable EasyAntiCheat by creating a bat file and add "-DLSSFG" command to enable DLSS Frame Generation in-game.
Just make a bat file as mentioned above in ...\Lords of the Fallen\LOTF2\Binaries\Win64 and Copy & Paste these 3 lines in it:
set SteamAppId=1501750
set SteamGameId=1501750
start LOTF2-Win64-Shipping.exe -DLSSFG
Copy dlssg-to-fsr3's content to the same folder as well ...\Lords of the Fallen\LOTF2\Binaries\Win64 (Couldn't get it to work with DLSSTweak's version)
and finally, just start the game by running the .bat file you created
Worth noting that Global Illumination on "High" caused massive frame spikes and stutters for me so keep that on "Medium" if you encounter something similar. HDR should also be working according to my testing