This mod carried my Calamity playthrough up until Moon Lord, since I haven't tried elsewhere. The projectile distance can be quite "cheat", as some bosses have their projectile get wiped out before it even shown.... but as far as I could tell, majority of my deaths were caused by poor positionings.

This, for some reason, is the only way for me to beat worm-based bosses in Calamity.... it's literally alleviated my lag into something playable! Adjusted some of the stuffs, like NPC limit or even Dust limit... Combined with "Clientside Lag Remover", and I can say that the lag is basically 70% gone. The rest might be caused by my CPU, AMD Ryzen 3 3200U, which isn't a gaming laptop CPU lol

Thank you so much, Frenetic. I can't wait trying this to Post-ML content in Calamity.

(I can confirm that worm bosses are the one that caused a consistent frame drop on my laptop. Tested The Destroyer on Vanilla Terraria and it doesn't cripple my FPS, but the same boss lags terribly on Calamity... even without Infernum)