help with hashrate

My friend and i got the same cards a 1080 ti on the same day a few years ago, we decided to start mining and we found a "clock" for them. My friend is getting 26 mh/s on kawpow while I'm getting max 16. Does anyone how some other good clocks.

The clock is: core clock 120, mem clock 550, pw limit 80% and temp limit 77.

we are both using nbminer and 2miners.