possibly. bitcoincash can be a good alternative next to bitcoin because bch is indeed near perfect and it doesnt have any known issues or problems like scalability or slow and expensive transaction cost.
It does. Bitcoin needs more than "increasing block size" to be ready for mainstream (but I don't think it needs to), but by thousands, not just 8 like with BCH blocks. And BTC is slow because of miners manipulation.
did a transaction 15 hours ago, paid $26, its still pending, btc trans are expensive and slow