The transaction (tx) rate is too low and tx cost can fluctuate wildly in addition to costing far too much. Some sort of side chain (like the lightning network)

The transaction (tx) rate is too low and tx cost can fluctuate wildly in addition to costing far too much. Some sort of side chain (like the lightning network) could help boost tx rate but there’s nothing currently anywhere near what could be regarded as near peer in regard to visa or other financial network tx rates. And, above all, the immorally high energy consumption required by mining needs addressing. Again, lightning offered solutions but it’s not enough to satisfy larger scale adoption. I keep hoping though.