Yea the H80i isn't sufficient for that processor. You need at least an H100i, and ideally the H150i Pro XT, there's no such thing as too much cooling on an ultra high end processor. You may need a new case to fit the best of coolers though, the H150 is a 360mm cooler, the H100 and H115 are 240mm coolers.
https://www.amd.com/en/thermal-solutions-threadripper