As I only download trusted software, I don't think I will be affected by Spectre or Meltdown or Zombieload, yet they take a lot of performance from my computer. Question is, how do I disable fixes for the mentioned 3 vulnerabilities, a: in the intel microcode, and b: in the kernel. The operating systems I need help for are Arch and Gentoo. If this thread gets popular, I think it will help many others also who need help with this. Thanks in advance!