> If you want prevent Meltdown and Spectre patches from slowing down Your PC, on Windows you can use the InSpectre tool: https://www.grc.com/inspectre.htm

Yes, use the tool to get the actual patches...

> Protection from these two significant vulnerabilities requires updates to every system's hardware–its BIOS which reloads updated processor firmware–and its operating system–to use the new processor features.

> This InSpectre utility was designed to clarify every system's current situation so that appropriate measures can be taken to update the system's hardware and software for maximum security and performance.

If this tool had the secret fix that didn't impact performance in any way then wouldn't it have been incorporated everywhere?