The idea about such "decentralized" games is to offload resources to the clients playing the game. But many clients have high ping times on their networks, which will slow the whole game down if they are the only ones with the updated game state which they need to push to peers. It makes the speed of the game only as fast as the ping latency of the slowest peer.
We are going to populate the Autonomous Decentralized Universe of our blockchain game platform with numerous self-learning self-planning bot players endowed with non-algorithmic cognitive capabilities such as discovery of new anomalies and patterns. So it does not matter if there are many human players available to play against. Plus due to the spawning of multiple State Channels(Xaya calls such realtime spaces Game Channels) between peer-to-peer players(both human and bot players) the latency will be lower than even centralized game platforms.