so its no longer too slow and expensive to use.
This is BCashers narrative. The blockchain tech, if it's properly decentralized, is getting expensive if it's being used heavily. PoW is expensive too. And if you want it fixed, it's extremely easy: go for any worthless altcoin, those will be cheap to use; and especially if you go for one that's also centralized, you'll get fast confirmations too.
Now, at least the cost part, that's not much of a flaw, it's a feature. Bitcoin success relies on greed. This makes so many miners mine it and make the blockchain more secure than any other coin's, this also makes people hurry and pay huge fees for the transactions in order to not miss whatever market movement. You seem to have forgotten that 1-3 sat/vByte was just fine before this new bull run/FOMO bubble has started.
Also you seem to forget that in many cases there are options to avoid on-chain transactions, which is the usual advice in this kind of situations. This means altcoins or LN. This approach fixes the speed and fees for many (especially the withdrawal fees from exchanges, which are in most cases bigger than tx fees). And before somebody jumps and tells "then why don't use <whatever> altcoin only?", remember that without Bitcoin success, most/all altcoins would not exist, remember that your altcoin is most probably not accepted in the shop you want to use it, remember that your alcoin's price cannot compare with Bitcoins (and that's why you are actually using Bitcoin, no matter what you are saying). And remember that you are free to use what coin you want.
And if you still don't get it, then you don't want to understand and I wasted my time explaining it for you.
