Zintom/GameOptimizer — reverse-engineered prompt

Build me a simple Windows game optimizer app in C# that helps improve game performance by lowering the priority of background processes and, if the user chooses, limiting which CPU cores those processes can use.

I want it to feel like a small utility someone can run before gaming. On first launch it should create a process whitelist text file, with common things already listed, so important apps and games don’t get changed. The user should be able to add executable names without the .exe part, and comments with # should be ignored.

The app needs a main menu with easy preset optimize modes, a manual command input option, and a help section that explains what the commands do. It should skip anything in the whitelist and only affect other running processes. Please make it safe and clear, with messages that explain what it’s doing and how to undo or avoid changing the wrong apps, especially chat apps like Discord or Teamspeak.