The biggest draw back to BTC is the processing speed, and as we saw last Jan when prices went up, the processing required and the cost of that processing, due to the number of miners available, makes the 1st generation BTC difficult for day to day transactions.
The downside of BTC transactions are similar to gold, it is difficult to spend on a daily basis.
Since then many alt coins have been released that increase the speed of processing at a much lower cost.
The issue with alt coins and their increased speed of processing is security. How many transactions on the chain need to be processed to validate any one transaction.
The lightning chain was developed to address this.
Beam are looking to expand the adoption of crypto, and their ideas look interesting, although no timeframes have yet been set.
https://sludgefeed.com/beam-plans-to-develop-mimblewimble-lightning-network/