NTLM Performance Problem

[Sondero]

Hello,
i have a little performance problem with cracking a NTLM hash.

My Hardware:
Disk: Samsung 970 Plus M.2
GPU: 2x RTX 2080 TI

With Benchmark i get this results:

Hashmode: 1000 - NTLM

Speed.#1.........: 92787.1 MH/s (24.13ms) @ Accel:128 Loops:1024 Thr:256 Vec:2
Speed.#2.........: 89742.9 MH/s (24.92ms) @ Accel:128 Loops:1024 Thr:256 Vec:2
Speed.#*.........:  182.5 GH/s

With my favorit attack-mode:

A Wordlist with only 12 words
hashcat64.exe -a 6 -w 4 -i --increment-min=5 NTLM-Hash PW_List.txt -1 ?d?l!@MLK-?? ?1?1?1?1?1?1?1
Speed.#1.........:  8555.0 kH/s (1.05ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#2.........:        0 H/s (0.00ms) @ Accel:128 Loops:1024 Thr:256 Vec:1

so i looked at https://hashcat.net/faq/morework and tryed the 1st version with a pipe to hashcat

hashcat64.exe --stdout -a 6 -i PW_List.txt -1 ?l?d??!@LKM ?1?1?1?1?1?1?1 | hashcat64.exe -m 1000 NTLM-Hash

Speed.#1.........:  306.5 kH/s (2.35ms) @ Accel:512 Loops:1 Thr:64 Vec:1
Speed.#2.........:  315.0 kH/s (2.39ms) @ Accel:512 Loops:1 Thr:64 Vec:1

pure wordlist attack is also not so fast as it looks in the benchmark results:

hashcat64.exe -O -a 0 -w 4 -m 1000 NTLM-Hash wordlist_600million.txt
Speed.#1.........:  5998.7 kH/s (0.39ms) @ Accel:128 Loops:1 Thr:256 Vec:1
Speed.#2.........:  5912.1 kH/s (0.39ms) @ Accel:128 Loops:1 Thr:256 Vec:1
Speed.#*.........: 11910.9 kH/s

edit://
now i make my wordlist a little bi bigger and the performance looks much better (but still a long way to 182.5 GH/s):

hashcat64.exe -a 6 -w 4  PW_List.txt -1 ?d?l!@MLK-?? ?1?1?1?1 --stdout -o PW_List_+4.txt

hashcat64.exe -a 6 -w 4 -i NTLM-Hash PW_List_+4.txt -1 ?d?l!@MLK-?? ?1?1?1?1?1?1?1


Guess.Mod........: Mask (?1?1?1?1) [4], Right Side
Guess.Charset....: -1 ?d?l!@MLK-??, -2 Undefined, -3 Undefined, -4 Undefined
Speed.#1.........: 24265.2 MH/s (90.51ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#2.........: 23676.4 MH/s (92.23ms) @ Accel:128 Loops:1024 Thr:256 Vec:1
Speed.#*.........: 47941.6 MH/s