HRV constantly low

I've had my Oura4 ring since December and my HRV is always in the low 20s sometimes teens. My deep sleep is usually around 1 hour, rem is 1.5 mostly. I've uploaded my data to chat gpt and done the suggestions, once it went to 30. It seems to think I'm in a constant state of alert. I'm 52 and fit also on trt. Any suggestions?