I am probably going to get nailed for this but its the truth, BTC transaction sucks🤦♀️ its slow as a snail, I am trying go send some bitcoin to exchange using my trust wallet and it's just there over 5 minutes, imagine been in haste in a store nearby trying to pay with BTC using your wallet and this happens, you are forced to wait around till the transaction go through, not a good feeling at all.
You shouldn't ask too much about bitcoin, is the first blockchain network and it is completely decentralized. It is true that bitcoin transactions are processed more slowly because bitcoin's block size is smaller than today's altcoins, and transactions on the blockchain become more sluggish when there are many transactions being made at the same time. If you are in a hurry to trade then increase the priority fee or you can use altcoin instead.