A lot of cryptocurrency enthusiasts and investors are hoping for the day Bitcoin and some meaningful altcoins will be mainstream and also use by online payment giant like Paypal.
PayPal help bitcoin become more popular and more people will use bitcoin, the adoption will increase. On Paypal now you don't actually your bitcoin and they simply use another third party service for their new payment method.
Fortunately, the crypto community received an amazing news this year about Paypal integration of Bitcoin, LTC, ETH etc last month but after the announcement by Paypal Bitcoin have been experiencing a huge transaction lagging and ridiculous size of the mempool.
Difficulty changes and it is not a constant figure. Changes in difficulty affect bitcoin mempool, fee and it happens from 2009 till now. It is not a new thing and no lag is there. If you want fast transaction, accept high fee. If you want cheap fee, please stay calm and wait.
My question is there any perfect solution put in place fix this problem aside from the lightning network which i don't know much about cause Bitcoin will gain more traffic next year and if nothing is done now it may lead to some turnoff by some investors?