For example you have the Ayara, First of Locthwain Borderless foil at $132.00 and TCG has the same card at $36.00
Garruk, Cursed Huntsman (non-foil) $47.00 TCG $18.00
Sorcerous Spyglass Borderless foil $120.00 TCG $30.00

I could go on & on, but prices on Deckbox are waaay off.

Yeah, it takes Deckbox a while to adjust to the market, especially if its own Marketplace sellers aren't adjusting their prices or if there's simply not enough for sale on Deckbox.

The high prices you're seeing are the preorder prices, which always drop significantly after the cards start to actually flood the market. No idea how long it'll take, but Deckbox will eventually catch up! ;)

Here si the official word on card prices:
https://deckbox.org/help/card_prices

It is an average of different things, not just tcg.