bitcoin are traceable, YES it is, you can track how many bitcoin your account or ones account send by other account but it will not give you who send it (name and location) what they called Anonymity

It have a huge fee in sending bitcoin, because it was maintain by miners

Receiving takes more 10 minutes, ..."Currently, bitcoin network traffic is unusually high due to increasing demand for transactions per block. Block sizes are limited, so this means that transactions which exceed the capacity for a block get stuck in a queue for confirmation by bitcoin miners. This queue of unconfirmed transactions is called the bitcoin   mempool." Ref: as for bitpay

.."Confirmation times vary. Confirmation times depend on the transaction fee paid by the sender. If the fee is high enough, Bitcoin transactions can obtain three confirmations in as little as 30 minutes. If the fee is low, it may take days for a transaction to be confirmed." ref: Luno

I believe that it takes many year before bitcoin will be replace by Altcoin, if these problem will not resolve. But, for now bitcoin will be remain on top of all crypto as it is the first crypto embrace by society.