If you don't even know what the word "replica" or the meaning of the word "ledger" is how did you come to the conclusion you knew anything about the CAP theorem?

Bitcoin, and all its would be copycats, use a global broadcast model, and a global state.

10 minute blocks was chosen because of the physical limitations of the internet.

Increasing throughput, and reducing latency, by necessity progressively exclude more and more possible nodes on the network due just to propagation delay. The tradeoff does not make a more useful network system.

If you want to do fiat finance protocols, go work for fiat finance. Global broadcast model is not something that any fiat money network does. They are all peer to peer, franchise based, small networks with very tight parameters.

Otherwise, if you understood the distinction between global and peer to peer state, then you would see that Lightning is the only way to solve the scalability problem, or something a lot like it. Something that gives you partition resistance, because the network is virtual (addresses are not tied to space or time, only a number) this means that Lightning does not have to be strong against partitioning, because it only operates with mostly fully 6 confirmations old transactions, for most of the lifespan of a channel.

And I have been studying this for some time, and my first instinct when I saw bitcoin was "this might be a way for making a monetised Tor style network". What you build on top of L2 like LN is applications and data transport systems, and you leverage the Consistent, and now also Partition Resistant milliSats to prevent the enemy of Availability - spam and sybil attacks, from shutting down the network. As well as reducing the intelligence gathering required for a 5$ wrench attack.

Drivechains, like all shitcoin ideas, ignores the fact that Bitcoin already is in the Goldilocks zone of distributed systems design for its express purpose: an immutable, and trustworthy monetary ledger that no entity, even States, cannot censor it, let alone craft false transactions that suit their purposes.