I was attempting to add FoamFix to my small server modpack - Wynncraft Plus.
Unfortunately upon the addition, the RAM usage went from ~1000- to ~3500 and I kept getting lag spikes even if I allocated enough RAM. The game also kept freezing when the server resource pack was changing which didn't happen before, and the log showed java.lang.OutOfMemoryError: Java heap space.
I am using the latest version for 1.12.2. Any idea what's going wrong?