Your issue can be solve by changing the load order of your mods, you are probably overriding a mod with another that does something similar causing brown faces. You can try using MO2 to see incompatibilities or the nintendo switch mod manager to change the load order of esp's and bsa's but you...
Mem, gpu and cpu clock stays at 0mhz when I open freebird, I'm on latests atmosphere and I have followed the installation steps correctly. Btw, the program looks great.