I have :

ASUS ROG STRIX B850-I GAMING WIFI

G.Skill Trident Z5 RGB [F5-8000J4048F24GX2-TZ5RK] 48 ГБ

AMD Ryzen 7 9800X3D

I did :

1) enabled memclk/2

2) tCL =38

3) tRFC = 640

4) tWR = 48

5) tRTP = 12

6) tRAS = 60

With xmp, the reading was 57000. Latency = 81ms .

After setting up . changed to 61000 read and 63ms .

How can it be improved ?)