You need to consider the good things even though bitcoin transactions possess that kind of attribute. There are some good things about it and if you want to get as fast as possible the only way is either you guys trade in the known exchanges or you need to pay a higher fee for a transaction. But the good thing about bitcoin is, it still decentralized and it means, no one can interfere with your bitcoins and your transactions except you. Unlike the coins you are talking about, one move from its creator and they will all dissapear from your wallet.
I think everything that is wanted to be done quickly has consequences that must be paid, in order to get the what we want . It is only natural that with the high present value and large enough traffic, something will happen which will be disturbed by everything we are going to do.
but as long as the transaction we do is safe, of course we will use it, even though it seems a bit expensive and slower.
it could be that we give more costs to be even faster so it depends on us too.
but it is not the main thing if we believe that what we are going to transact can be guaranteed its safety compared to us using others that we cannot necessarily get.