as you can see, you’re limited by the main thread (CPU, not GPU), which is nothing odd when running on older CPU’s.
Lower settings that impact CPU the most (glass panel refresh rates to low, drop or remove AI and multiplayer trafffic, reduce terrain/objects scale etc).
What you could also check is if the correct XMP profile is enabled for your RAM in your BIOS. Ryzen likes fast memory.
But yeh, it’s around what you can expect with your hardware.