Changing ME FW to a lower version

Hello, everyone! I want to change my ME FW, on my Gigabyte B360M H (which has a i3-9100f) to the best performing one(or the earliest). Can somebody point me in the right direction? Right now, I have a F15 Bios with modded microcodes, and I was thinking perhaps I should get the F12’s ME as it is the first one to support 9th gen, however I would want to go as low as possible so that I can avoid as many mitigations as possible, for the best performance. Could somebody please point me in the right direction?