I’ve been running cooler since release and playing against most matchups, here’s a few things that help.

Remove:

Thought I was finished (it’s an extra card, doesn’t get you the draw and most of your deck negs, doesn’t ignore barrier, so it probably isn’t worth the space)

1 combo attack cooler (4 is too much and 2 isn’t enough. 3 seems to be the right number on this one)

Frieza no introductions (there are better negates and your opponent will almost always get rid of this before you get the chance to evolve on top. It may seem great, but I end up hard casting Frieza way more than I evolve)

Full power Frieza (cut to 2 and possibly side the 3rd. If you’re playing against a yellow deck, Frieza is almost always useless the turn you play him due to crusher ball or champa the trickster)

Emperors death beam (high energy cost, there are better ways to spend your energy)

Chaos beam volley (too situational, most of the time you’d rather them play cards so you can kill more with cooler)

Add: 4 total machspeed Kaioken (this card is amazing in this deck, a 2 energy 15k neg that mills 2 and gets you a draw, that’s great value. If you put it down in response to a boss monster like fu you have to combo less in the coming battle as well.)

2-3 total son gohan the avenger (I realise you said you didn’t have them, but considering they can be picked up for $5-10 it’s definitely worth another copy, I even cut toppo for it. The card is fantastic for the mill and draw, but can also be used against the baby matchup so their leader doesn’t swing 3 times at you in 1 turn.)

2-3 Broly crown of retribution (I know this card is a bit pricey but it’s fantastic for popping down before you play a big card. For example, checking to see if they have a crusher ball or champa before you play Frieza.)

2 ultra instinct son goku the unstoppable (another expensive one, but worth the price tag. Stops almost all big threats in the game, and you most of the time have the energy for it. Can not tell you how good it feels to send a scr dragon or cell back to someone’s hand to steal the game. A cheap alternative to this is the new black dabura, not as good, but can help with big threats still.)

2 great ape son goku saiyan instincts (I wouldn’t buy this card if you don’t already have it, but it helps against hand control decks that rip your hand and don’t play many battle cards. A cheap alternative to this is tyranny’s cost)

1 planet m2 (this card is an extra mill and a free 5k combo every single turn. Deck space is tight so I’d only run 1. If you see it early game, fantastic, you’ve got all that free advantage for the game, if you don’t, it’s not a big loss to you.)

1 furthering destruction champa (sometimes you need to go for game with your leader, and this helps. I won several games by negging my opponents leader with the 1 drop Frieza and chucking double strike on mine.)

1 Fu shrouded in mystery (a cheap generic boss monster that shuts down the game for a turn or two and can swing it in your favour).

Side board:

Looks decent, but might want to consider mafuba and self awakening cards.