Low output when piping

[Hasher007]

I have really low performance when piping rules but I do not understand why. 

Im trying:
hashcat.exe --stdout \dictionaries\rockyou.txt -r OneRuleToRuleThemAll.rule | hashcat.exe -w 3 -m 11300 --session=trial1 -o found.txt hashes.txt

Hashcats output is like:
Session..........: trial1 
Status...........: Running
Hash.Name........: Bitcoin/Litecoin wallet.dat
Hash.Target......: hashes.txt
Time.Started.....: Mon Jan 25 17:28:57 2021 (59 secs)
Time.Estimated...: Mon Jan 25 17:29:56 2021 (0 secs)
Guess.Base.......: Pipe
Speed.#1.........:        0 H/s (0.00ms) @ Accel:2 Loops:1024 Thr:1024 Vec:1
Recovered........: 0/1 (0.00%) Digests, 0/18 (0.00%) Salts
Progress.........: 0
Rejected.........: 0
Restore.Point....: 0
Restore.Sub.#1...: Salt:0 Amplifier:0-0 Iteration:0-1024
Candidates.#1....: [Copying]
Hardware.Mon.#1..: Temp: 46c Fan: 24% Util:  6% Core:1410MHz Mem:6801MHz Bus:2



So, only 6%
Without piping I had 100%, but I wanted to try this OneRuleToRuleThemAll stuff and learned about using piping to get more work done. It seems to turn out the other way around for reasons unclear to me. Hopefully someone can explain.