Low hashrate

I'm new to raven coin and only been mining for 3 days, but before that I was mining bitcoin and ethereum and for both of those, my RTX 2070 running at 2040 MHz constant, was doing 41MH/s, but with raven the graphics card is bouncing between 1800 and 1900 MHz and only at 21 to 24 MH/s.

I'm using T-Rex for this. Is there a way to improve the hashrate?