Question About Resolution Scale

The lowest I can set it is 71%, is there a way to lower that even further or am I limited to some resolution thing on my end?

I feel the RESOLUTION is bugged right now. Increasing that increase the CPU usage

Going from 1440p to 1080p got a 20%-25% reduction CPU and going f rom 1080p to 1600p was something similar. I can get 180-200 FPS at 1600p

I wish I could lower it just a bit more then my frames would be perfect