AAAANDDDD...It's good to be back.
P.S. ***quite
I'm reading between the lines here due to experience....
You intend to level Smithing to 80 in one sitting from starting a new character and you want to know if framedrops will be a problem?
How are you intending to do this, naturally or by grinding a crafting exploit?
Should the question really be "Will using or doing xxxxxx to get my smithing to L80 quickly cause any problems"?
Last of Us is an 18 rated game and you are 13 so I'm not commenting on that.