RTX 3080 hashrate drops on lower fan speed hiveos

Hello, I assembled a rig with 4 rtx 3080’s and hiveos for mining eth, they are working well but they report between 90% and 100% the fan speed and the temperature of the cards is around 40 / 45º, the issue is that when I lower the speed of the fans performance falls to the ground, is this normal? with other gpus it had not happened to me.

Also if i turn on auto fan, the performance of the rig decreases lower than 200mhs. I have tried auto fan with AMD 580 rigs and it did nothing to the mining performance.

Here is my config on hiveos and the hr reported on each setting
Core: -200
Mem: 2000
PL: 230
Fan: nothing
HR: >93mhs
With this settings the software reports 100% on fan speed

Core: -200
Mem: 2000
PL: 230
Fan: 70
HR: 89/90mhs

Core: -200
Mem: 2000
PL: 230
Fan: 50
HR: 65/70mhs

Kind Regards