Ah, okay. I thought it was referring to Sponge's configuration. Thanks for the help with that.
I was sure I looked in FoamFix's configuration file for it and didn't see it, but I see it now and will disable it.
As a side note, anyone have experience with this mod or BetterFPS to see if it actually helps a Sponge server when there is already so much optimized in Sponge?