Riot games, explain me how to get an S+ on Irelia.

your KDA was quite amazing. but CS seems to be one of the biggest factors in the grading factors. the fact you have 229 CS at roughly 40 min is awful, you need roughly 180 more cs

if you go even 3/1/0 but you have 400 CS at 40 min you will probably get an S+

Your cs seems a little low there friend

229 cs in a 40 mins game

Your 5.8 cs per minute and 8 deaths is not the S+ standard.

Farm better. Die less.

the bar is high because she is overpowered so everyone does well

Don't die as much, that's all really... I know it may sound like I'm being rude, but I'm serious xD