Any endgame minion that fires immediately upon being summoned is going to auto-fire far faster than you can refresh it by re-summoning it. If anything, you're lowering your theoretical damage output by resetting their attack timer
(but theoretical DPS is stupid rabbit hole to go down; min/maxing it is irrelevant even for Expert mode currently).
If you want to "play" a "pure Summoner" that does nothing but sit around and dodges attacks while a cloud of minions does damage, that's fine, but seriously consider just using a Mana Regeneration Potion rather than asking the game to bend to your whims.
I know I cannot change your minds on this, and my opinion ultimately does not matter, but for now, adapt or
mod your client yourself with the Terraria Tweaker app.