For who want play painkiller at very high resolution like 4k or above, there is a little issue on the menu. If you in game have high fps on 4k, when you open the menu and also go in the sub menu, you will notice a very high lag, your fps will drop close to 1fps, but if you go back in game everything is fine.

So I've thinked for a workaround: automatically change the resolution when you go in the menu or exit from it and return in game.

You need this little file that you can put in the "Data\LScripts\Main" folder of the game (game.lua): click here[drive.google.com]

If you already have the file maybe is because you have some other mods installed, but don't worry and read below:

Open the "Game.lua" file (with notepad, notepad++, wordpad for example) and search for this line:


Now before the "end" of this function, put this (all):


Instead of the "1920X1080" put the resolution that you want in the menu, if different.

Now search for:


And put this before the last "end" (all):


Instead of "3840X2160" set the resolution that you want to use when you're in game.

Save the file and play.

If you use this "fix" you can't change the resolution from the game, because when you do it, later it will be overwrited by the code above.

When you enter/exit in game/menu you will see a black screen for a second, it's normal because the engine is changing the resolution (the same like you do it from the video option menu).

Hope that this will help who want play the game at high resolution without the lag of the menu. This will work in others painkiller games too, because same engine. Just use the manual method because the file above is for painkiller 1.64 only. The "Game.lua" file it's inside the "LScripts.pak", you need to extract it, for example with Painfull or other tools (remember su put the files in the correct folder and subfolders like above).

By Peppins