I'm not a DB expert but from what I know, theoretically multi-threading might not bring the performance boost you might expect as on real-world deployment higher contention & latency will kill your throughput as a result your performance would be bad because shared locks will be held longer.
So lock-free single threaded with event-loops DBs should in most cases (when implemented properly) outperform the multi-threaded DBs with shared locks in a high contention & latency environment.
But you claim Lux is more performant than Redis & Valkey, I have no idea on the internals of Lux or the benchmark environment to reject your claims. As more people try it in real workloads, we'll know the actual performance of Lux.
So lock-free single threaded with event-loops DBs should in most cases (when implemented properly) outperform the multi-threaded DBs with shared locks in a high contention & latency environment.
But you claim Lux is more performant than Redis & Valkey, I have no idea on the internals of Lux or the benchmark environment to reject your claims. As more people try it in real workloads, we'll know the actual performance of Lux.