Can i downgrade the Bios? or is it pointless?

[rift1alts9444]

Gigabyte z270x Aorus Gaming 5... I've experienced some performance drops since i installed the latest bios which contains a "cpu microcode update" and I would like to go back to one of the following:

https://www.gigabyte.com/Motherboard/GA-Z270X-Gaming-5-rev-10#support-dl-bios

Let's say i don't care about the security patches and i roll it back to the F7 version, the biggest question is...

Would that remove the cpu microcode update?

Or is it pointless since it won't remove the microcode update from the CPU?

Thanks in advance for any help you are able to provide.

 

[drea.drechsler]

It may be a moot question as you may not be able to downgrade your BIOS to a version prior to the security upgrade. I know my MSI BIOS update process will tell me any earlier version (than the one where they rolled out the security updates) is an invalid BIOS.