The speeds relate to hashcat and it's more than likely the "-O" paramater that causing the speed difference:
When using -O, the optimized kernels are restricted in length to ~30 chars. it's a lot faster, but limits max password length ofc. You have to be careful using optimized kernels when using fast algos with long salts.
Check the "Custom Commands & Sessions" tab and see if -O is being used. If not, then newer hashcat uses will be slower as it uses normal kernels so will be slower. To bypass, add -O param:

Code:
-O, --optimized-kernel-enable | | Enable optimized kernels (limits password length)
When using -O, the optimized kernels are restricted in length to ~30 chars. it's a lot faster, but limits max password length ofc. You have to be careful using optimized kernels when using fast algos with long salts.
Check the "Custom Commands & Sessions" tab and see if -O is being used. If not, then newer hashcat uses will be slower as it uses normal kernels so will be slower. To bypass, add -O param:
