So does it means that Zilliqa has PoW consensus? In this case their speed should be too low as like as Ethereum has?
You are right most of the companies are developing their model from POW to POS because they want to increase their transaction speed. Now Ethereum has already begun its reputation to develop the POS model in order to speed up its transactions by speeding up the node activation. We have to wait and see how Zilliqa reputation once ETH 2.0 Launches.