The game will sometimes overwrite your custom settings when it launches. You must lock the file to prevent this from happening. Save your changes in Notepad and close the document. Right-click your modified configuration file. Select . Check the box next to Read-only . Click Apply and then click OK . Additional Low-End PC Tweaks
The best way to improve performance on low-end machines is the Prototype2Fix mod available on Nexus Mods , created by Emu. This acts as a comprehensive config fix. Installation Steps: Download the ZIP file from Nexus Mods.
Depending on your operating system and installation method, there are a few possible locations where settings, saves, and profiles are stored: prototype 2 low end pc config file
RemoveTickRateLimit = true
: Right-click the game in Steam > Properties > General > Launch Options. Enter resolution=1280x720@60 (or your preferred low resolution) . The game will sometimes overwrite your custom settings
: Forces a lower resolution, which is the single most effective way to gain FPS on low-end hardware.
C:\Users\[YourUserName]\Documents\Activision\Prototype 2\ Right-click your modified configuration file
Before making any adjustments, it helps to understand what the developers originally intended and why modern PCs struggle.
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