Whenever i throw a spear or a dagger or a shoot a musket i have a high ping spike even in singleplayer somehow

and yes i tried other version and it has this problem only on version 1.19.4

I will try to investigate in around 3-4 days

okay thanks

i forgot to put that it only happens on big custom maps that weighs 600 mb above

Tried on a 2 GB large map (Oshode City), cannot reproduce. I think you might have other mods installed that could interfere (mixin) into BWM: Legacy's behaviour

Just tried in a rather large modpack, also does not cause lag. I will close this as unreproducible.