I use the same ramThe Ryzen CPU's are very dependent on the RAM speed, so those who have low FPS must have cheap slow RAM,
mine is at 3600Mhz CL14 so the CPU is working at it's best and I get a decent ~60 frames at ultra with ray tracing.
I get around 55-60 fps with ray tracing on using a RTX 2070 Super
80-95 fps with ray tracing off and set to ultra.
Maybe the ones complaining need to drop some cash on decent ram