HDD self-repair takes ages

Yesterday came an alert window in windows that one drive got a problem and I have to restart, so after the restart the self repair started immidiately. Everything as intented but this program is now still working. It worked for over a whole day and hast only 12% progression overal, in phase 1 its on 37% and an estimate time of 181 hours until its done. It is a normal 2TB hdd working totally fine the last years and no speed drop or 100% utilization lately. I even checked it with a seagate drive check tool last week and it was fine.

Is this normal?

The data on the drive is not important. Should i just cut it and try plugging it off an on again?

As im writing this it suddenly jumped to overall 20% and 61% in phase 1. now I am really not sure what to do. Probably wait i guess.

Any recommondation?

Btw you can speak on a higher technical level to me im not a noob, just impatient ^^