https://bugs.mojang.com/browse/MC-123584?focusedId=461302&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-461302
https://bugs.mojang.com/browse/MC-33134 (spongeforge has fix of it)
https://bugs.mojang.com/browse/MC-101232

https://bugs.mojang.com/browse/MC-2536
https://bugs.mojang.com/browse/MC-51418

implent entity/tileentity activation range like in spigot performance patches. Spongeforge also has this patch. Vanilla 1.18 has simillar optimization named as simulation distance
https://docs.spongepowered.org/7.4.0/en/server/management/performance-tweaks.html

MC-33134: SpongeForge's way of handling doesn't look like much of a "fix" as it (opt-in) disables saving of mineshafts to world data, but the relevant code and context in the generated config under structure-saving
MC-101232: Looks like it was fixed by Forge a long time ago.