Isn't that just resolution rather than DPi scaling. There should be a scaling option which adjusts DPi outside of resolution. There was on the S7/7e anyway.
There is but I doubt they did that then. I was going to change it back to stock setting BUT I need to utilize the phone my way. Since the s8 is no longer microstuttering, I don't need to worry about it. I only noticed it going back to the home screen, nowhere else.