I've just gotten around to testing my 2d game on Android and I get 10fps. Luckily it's hybrid using sprites, tilemaps and physics2d so I could just disable the auto world creation to see whether the issue was non-ecs related but it's not cos disabling it gets me back up to 60fps. It's possible it's my own code but the scene is very simple atm with only 60 entities. About 50 systems, maybe half jobified but there's not a lot going on and nothing computationally heavy. Android perf has been discussed before but the last official comment I could find related to it was a year ago here. Is anyone building ecs to android and not having perf issues?