1080 Ti RavenCoin Hashrate

hello, I recently started mining Ravencoin. I am getting 20Mhs. I'm using RVN 2mine (T-rex Miner) and using flypool. I use to mine Eth and I usually get 42-44 Mhs with Ethlargement pill. Is it normal to get half the hashrate for Ravencoin or Am I doing anything wrong? Also I've found that Ethlargement pill doesn't work for Ravencoin. Is that normal? Thank you.