I guess you are CPU bound. Reducing LOD should help. See below post. Should give you some hints.
I reach 60 fps with my rig. My specs Win11 Pro latest build 64Bit, 12700K 3.60GHz (UV -80mV), MB: ROG STRIX Z690-I GAMING WIFI, GPU: RTX 3080 (UV 806mV, 1830 MHz) , 32 GB DDR5 RAM (5600 MHz), Custom water cooling of CPU and GPU, Resolution: 5120x1440, Samsung G9, HAGS on, VBS on