Ok, I believe I found a fix; not sure if everything I did actually does anything, but it’s working. Like WilliamPoll said, uncheck the “UI Scale Fixed” in the interface tab and scale down to the desired setting; apply & save.
If that fails (this is what I did for my 4K screen), follow the same steps above except this time scale down to the lowest setting; apply & save. Then close the game, go back into your config file and change your scale (I set it to 4K) and save. Once you open the game you should be able to freely adjust the scale however you want (set mine to 87). This should be permanent too, so you won’t need to go back into the config file.