At its core, a store of value is just something that other people will desire as much now as they do at some later point in time. In that sense, Bitcoin runs the risk of being left behind if PoW at 7tx/sec becomes seen as the dial-up modem of crypto.
A store of value is a meaningless term. Value can't be stored. Stuff can be stored. And no assurances can be made as to whether stuff will keep its value over time. Anyone who does that is a charlatan.
