Hashcat efficiency degradation through time - Django (PBKDF2-SHA256)

[Chick3nman]

What version of hashcat are you using? There was an issue like this recently fixed and an update may solve it for you. Alternatively, it's possible that you have hashes of varying round count/cost. If so, as hashcat gets to the higher and higher round count hashes, the speed degrades further and further, and the longer the attack goes on, the lower the average overall speed becomes, causing it to appear to degrade over the course of the attack.