Stacked Decks - Opening Tips anyone?

So I farmed around 10 000 Stacked Decks. I like the gamble and would prefer to open them myself but it took me around 30 min to open 500... Now I'm really considering just selling them. It will take me more time to open them than it took me to farm them. This is ridiculous. I was looking for a way to open them faster. All I found was some YouTube videos of guys dropping them on the ground. But i want to keep all my cards, not just the few that are worth a lot so i would have to pick them up off the ground then open my stash so it would be even more time consuming.
To add insult to injury, why is there not a dedicated space for Stacked Decks in the premium cards stash tab? Or even in the normal currency tab they just go in the "whatever slot". Would be nice if we had a dedicated slot in our premium cards stash tab for the Stacked Decks and also a button to "Open all". Of course it will be added in Patch of Exile 7.21 or later.

That's why i wonder if anyone has a solution for this right now? I tried Shift clicking and placing cards in my inventory but it would only make the stack size of 1 per slot without revealing the card.
Maybe there is a macro or some script to make it easier or maybe it's possible to reveal the cards in-game faster somehow and I am just missing something?

If you want to keep all your cards, there really isn't anything more efficient than just opening them into a quad tab. I'm not sure why you would want to as the bulk of them will be worthless.

Think of it this way: If you only kept the valuable ones, you save a ton of time that you can then use to farm more cards and therefore have more of the valuable cards by the end.

Edited

I haven't tried it myself but apparently it's faster with a controller or at least more friendly for your hands.

Last time i was opening 400+ or so i asked a friend to help me.
Kept all cards. Did on bestiary. Is faster.
To 10.000? Probably 10 friends.
I can help if you want~ Never would give away my honesty to a trincket in a game so no need to worry about me picking something~

Get a friend to help, get a controller (they have a dedicated 'open stacked deck' button), or accept that it's going to take a while. Do them in stacks of ten, right click them in a square around the stack, then shift click them into the stash.