Right-click the Start button and select Device Manager . Step 2: Expand the Human Interface Devices section.
Note: Do not uninstall them; just disable them. They are typically for extra media keys on keyboards and won't affect your basic mouse or keyboard functions. 2. Limit CPU Core Usage (Affinity Fix)
Right-click and Disable all entries named "HID-compliant consumer control device" .
You can force Steam to launch with a specific affinity, which the game will then inherit. Change your Steam shortcut target to: cmd /C start "steam" /affinity 0xff "C:\Program Files (x86)\Steam\steam.exe" . 3. Use the Community "Prototype2Fix" Mod
Prototype 2 Lag Fix: Ultimate Performance & Stability Guide Prototype 2 is a fan-favorite open-world sandbox, but modern hardware often struggles with it due to poor optimization and engine conflicts with newer Windows versions. If you are experiencing low FPS, stuttering, or crashes, these proven methods can restore smooth gameplay. 1. Disable HID-Compliant Devices
The community has developed an ASI plugin that automates many of these fixes, including VRAM calculation errors and shadow issues on AMD cards.
Right-click it, select , and uncheck all boxes except for CPU 0 and CPU 1 .