Hi guys!
After 2 weeks of experimenting and modding I finally succeeded.
I have an Rx 5700 xt Red Devil with Micron memory. I had issues with consumption and of course temperatures were very high.
There was no way to do something with her bios even if  I tried too many times and different setups.
So I decided to work with another one vbios from Sapphire brand applied to my Red Devil.
Here's the results.

53.84 my/s,   78-79w,.  55C - 74C gpu - mem,. 40%fan,  1355mhz gpu,  875mhz mem...