tModLoader - Need help with making a weapon similar to arkhalis.

I want to make a sword have a swinging projectile like Arkhalis, I made the projectile with the help of some older post on this forum. It's swinging, but my problem is, that I have no idea what to change in my code to make the "swing speed" lower (kinda like the "Murasama" from Calamity mod

tModLoader - Touhou Mod by TheAbsentSoul/Wensomt

Breaker Blade - Terraria Wiki

This Mod MASSIVELY Reworks your Terraria Weapons…

tModLoader - [Help] Need info on figuring out Melee Based

Steam Community :: Guide :: Terraria Boss Ideas 12 - MoR Edition

tModLoader - I need help with some things with my Arkhalis like

Nebula Blaze - Terraria Wiki

Endgame Needs More Interesting Items, so i made some. : r/Terraria

Terraria Modding Tutorial

Found THIS in the Enchanted Sword Shrine instead of the Arkhalis

I've came up with this Idea and can't stop thinking about it : r

How to get Arkhalis in Terraria

Flymeal - Terraria Wiki