The cooldown tech claims to reduce the cooldown of loadouts by 1%. I tried testing this with every ship in the game and this is what I got.
I’m looking at the most buggy and ridiculous tech in the entire game developers

Well after clearing that out of the way. Here is my result of the testing.
LOADOUTS THAT COOLDOWN WORKS WITH
ANT
Pincer Gun
Sting Missile
JABBERWOCKY
Shrapnetic Bladies
HIRUDO
COOLDOWN DOES NOT WORK WITH ANY LOADOUTS
ANGEL FIRE
Vorpal Burners
Ventilate
SS VENTURE
Phase Beam
Photon Vorpedos
IRON WOLF
Packfire Rockets
Alpha Cannons
CLaW
SHINOBI
Iaido Beams
CIRCE
Bindu Bolts
Space Fold
CLANKNOR
Scatter Cannon
Gruba Turret
Gift of VORP
UNDULOREAN
Quantling Guns
XXGGGHHR’THULHU
Shogg’spurt
TORPAZ
Razor Shard
TURBO HAWK
Aero Slash
Ro-Skid
DREADNAUGHT
Minigun
CRAW
Shock Lance
So basically, if your ability is not on that list. Cooldown will not work
But instead of working, what cooldown will do is produce a graphical glitch that tricks you into thinking that your ability’s cooldown is over while it is not. This graphical glitch can drain your energy and the loadout won’t even activate, or it won’t even drain or do anything until the actual cooldown is finished
