Konan was able to tank a fire style point blank with no damage. But ultimately did get one shot by Base Jiraiya
She was able to fight multiple members of the aburame clan. The aburame clan is an elite clan and konoha and has the most jonins.
She was able to damage obito BEFORE the sea of paper bombs. She was one of the first people to significantly hurt him besides Minato (another one of Jiraiya’s students) Also she moved fast enough in paper form that Obito needed the sharingan precognition to find her.
She's an exception in the akastuki because she wasn’t recruited by obito or scouted by zetsu specifically for her power. But obito didn't want to kill her beforehand because keeping her around would make nagato comply. Obito definitely underestimated her like he said.
because she was able to keep up with obito and blow him up minus the sea of paperbombs, she performed way better than fuu and torume did against him. The fact she’s an explosive user, long range fighter, sensor type and partially intangible in paper form. I will put her at Low Kage above Sasori and Deidara. I don’t think she has a strong enough arsenal to take down Kakuzu so under him