DES performance possible with identical crypts?

[strcmp]

Hello.

I would like to crack two DES (-m 14000) token.
crypt and plain are 8 bytes each.

hashes.txt:

Code:

crypt : plain1
crypt : plain2

Note that both pairs use the same crypt, which is unusual. Normally it is the other way around.

My hardware is NVIDIA RTX 2080 SUPER.

I use hashcat with the following arguments:

Code:

hashcat -m 14000 hashes.txt -o cracked.txt -a 3 -1 charsets/DES_full.hcchr --hex-charset ?1?1?1?1?1?1?1?1 -w 4 --force

Are there any arguments which might further increase performance?

Many thanks,

Besides this, I would be interested to learn more about the optimizations used by hashcat.

Code:

Optimizers applied:
* Zero-Byte
* Not-Iterated
...

I'm not talking about this YouTube video of atom, where the sound is unfortunately pretty bad.
But something written and general, especially the bitslicing and bit-evaluating (after calculation) part.