Idea to implement something like the “don't send useless entity packets” from purpur

here is the description from purpurs website:
“Skips sending relative move packets for entities that didn't really move”

this could reduce network usage a lot

Not inclined to implement this in Krypton, because:

1. No evidence has been provided that this provides any improvement in bandwidth usage.
2. Unknown impact on mods and speedruns.

Not implementing this. Keep an eye out for other optimizations.