Small changes in hashrates matter? Factory reset clock speeds?

[Coin-Girl 123]

Hello,

I am using smOS (simple mining OS). I have a card that drops exactly 2 mh every 2 or 3 minutes. I see it on claymore. Then it goes right back up and goes perfect. Everything is mining fine and properly, it happened after on OC. I know it is a bit unstable, but will it matter to run it like this for the duration until I get it fully stable? Would this be ok?

Also, how can I fully reset a GPU to factory settings? Is there a way in bios or in smOS? If so please tell how?

Thank you so much for any help. It is very appreciated